123034432531 has 8 divisors (see below), whose sum is σ = 133975789200. Its totient is φ = 112539661920.

The previous prime is 123034432529. The next prime is 123034432541. The reversal of 123034432531 is 135234430321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123034432531 - 2¹ = 123034432529 is a prime.

It is a super-2 number, since 2×123034432531² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123034432493 and 123034432502.

It is not an unprimeable number, because it can be changed into a prime (123034432541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111645940 + ... + 111647041.

It is an arithmetic number, because the mean of its divisors is an integer number (16746973650).

Almost surely, 2^123034432531 is an apocalyptic number.

123034432531 is a deficient number, since it is larger than the sum of its proper divisors (10941356669).

123034432531 is a wasteful number, since it uses less digits than its factorization.

123034432531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223293029.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 123034432531 its reverse (135234430321), we get a palindrome (258268862852).

The spelling of 123034432531 in words is "one hundred twenty-three billion, thirty-four million, four hundred thirty-two thousand, five hundred thirty-one".