103811472731 has 4 divisors (see below), whose sum is σ = 103812549312. Its totient is φ = 103810396152.

The previous prime is 103811472683. The next prime is 103811472761. The reversal of 103811472731 is 137274118301.

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 is a cyclic number.

It is not a de Polignac number, because 103811472731 - 2¹⁴ = 103811456347 is a prime.

It is a super-2 number, since 2×103811472731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103811472761) 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, 377675 + ... + 591828.

It is an arithmetic number, because the mean of its divisors is an integer number (25953137328).

Almost surely, 2^103811472731 is an apocalyptic number.

103811472731 is a deficient number, since it is larger than the sum of its proper divisors (1076581).

103811472731 is an equidigital number, since it uses as much as digits as its factorization.

103811472731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076580.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 103811472731 in words is "one hundred three billion, eight hundred eleven million, four hundred seventy-two thousand, seven hundred thirty-one".