123432311031 has 8 divisors (see below), whose sum is σ = 164705095680. Its totient is φ = 82223866872.

The previous prime is 123432311017. The next prime is 123432311039. The reversal of 123432311031 is 130113234321.

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

It is not a de Polignac number, because 123432311031 - 2¹³ = 123432302839 is a prime.

It is a super-2 number, since 2×123432311031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123432310992 and 123432311010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123432311039) 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, 16080645 + ... + 16088318.

It is an arithmetic number, because the mean of its divisors is an integer number (20588136960).

Almost surely, 2^123432311031 is an apocalyptic number.

123432311031 is a deficient number, since it is larger than the sum of its proper divisors (41272784649).

123432311031 is a wasteful number, since it uses less digits than its factorization.

123432311031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32170245.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 123432311031 its reverse (130113234321), we get a palindrome (253545545352).

The spelling of 123432311031 in words is "one hundred twenty-three billion, four hundred thirty-two million, three hundred eleven thousand, thirty-one".