13531412101 has 4 divisors (see below), whose sum is σ = 13532435532. Its totient is φ = 13530388672.

The previous prime is 13531412029. The next prime is 13531412107. The reversal of 13531412101 is 10121413531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10121413531 = 4007 ⋅2525933.

It can be written as a sum of positive squares in 2 ways, for example, as 2036355876 + 11495056225 = 45126^2 + 107215^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531412101 - 2¹⁵ = 13531379333 is a prime.

It is a super-2 number, since 2×13531412101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531412107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491620 + ... + 518413.

It is an arithmetic number, because the mean of its divisors is an integer number (3383108883).

Almost surely, 2^13531412101 is an apocalyptic number.

It is an amenable number.

13531412101 is a deficient number, since it is larger than the sum of its proper divisors (1023431).

13531412101 is a wasteful number, since it uses less digits than its factorization.

13531412101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023430.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 13531412101 its reverse (10121413531), we get a palindrome (23652825632).

The spelling of 13531412101 in words is "thirteen billion, five hundred thirty-one million, four hundred twelve thousand, one hundred one".