105431055531 has 16 divisors (see below), whose sum is σ = 146160352800. Its totient is φ = 67519171328.

The previous prime is 105431055497. The next prime is 105431055557. The reversal of 105431055531 is 135550134501.

It is a cyclic number.

It is not a de Polignac number, because 105431055531 - 2⁶ = 105431055467 is a prime.

It is a super-2 number, since 2×105431055531² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105431055492 and 105431055501.

It is not an unprimeable number, because it can be changed into a prime (105431055931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3058626 + ... + 3092903.

It is an arithmetic number, because the mean of its divisors is an integer number (9135022050).

Almost surely, 2^105431055531 is an apocalyptic number.

105431055531 is a deficient number, since it is larger than the sum of its proper divisors (40729297269).

105431055531 is a wasteful number, since it uses less digits than its factorization.

105431055531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6151758.

The product of its (nonzero) digits is 22500, while the sum is 33.

The spelling of 105431055531 in words is "one hundred five billion, four hundred thirty-one million, fifty-five thousand, five hundred thirty-one".