103405502531 has 4 divisors (see below), whose sum is σ = 104567362200. Its totient is φ = 102243642864.

The previous prime is 103405502527. The next prime is 103405502579. The reversal of 103405502531 is 135205504301.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 103405502531 - 2² = 103405502527 is a prime.

It is a super-2 number, since 2×103405502531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103405502494 and 103405502503.

It is not an unprimeable number, because it can be changed into a prime (103405502831) 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, 580929701 + ... + 580929878.

It is an arithmetic number, because the mean of its divisors is an integer number (26141840550).

Almost surely, 2^103405502531 is an apocalyptic number.

103405502531 is a deficient number, since it is larger than the sum of its proper divisors (1161859669).

103405502531 is an equidigital number, since it uses as much as digits as its factorization.

103405502531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161859668.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 103405502531 in words is "one hundred three billion, four hundred five million, five hundred two thousand, five hundred thirty-one".