15316023133 has 4 divisors (see below), whose sum is σ = 15316270780. Its totient is φ = 15315775488.

The previous prime is 15316023131. The next prime is 15316023137. The reversal of 15316023133 is 33132061351.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10720945764 + 4595077369 = 103542^2 + 67787^2 .

It is a cyclic number.

It is not a de Polignac number, because 15316023133 - 2¹ = 15316023131 is a prime.

It is a super-2 number, since 2×15316023133² (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 (15316023131) 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, 55891 + ... + 183727.

It is an arithmetic number, because the mean of its divisors is an integer number (3829067695).

Almost surely, 2^15316023133 is an apocalyptic number.

It is an amenable number.

15316023133 is a deficient number, since it is larger than the sum of its proper divisors (247647).

15316023133 is a wasteful number, since it uses less digits than its factorization.

15316023133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247646.

The product of its (nonzero) digits is 4860, while the sum is 28.

Adding to 15316023133 its reverse (33132061351), we get a palindrome (48448084484).

The spelling of 15316023133 in words is "fifteen billion, three hundred sixteen million, twenty-three thousand, one hundred thirty-three".