123103311431532 has 48 divisors (see below), whose sum is σ = 288014637815520. Its totient is φ = 40923928700928.

The previous prime is 123103311431531. The next prime is 123103311431537. The reversal of 123103311431532 is 235134113301321.

It is a super-2 number, since 2×123103311431532² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123103311431493 and 123103311431502.

It is not an unprimeable number, because it can be changed into a prime (123103311431531) 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, 664651594 + ... + 664836782.

It is an arithmetic number, because the mean of its divisors is an integer number (6000304954490).

Almost surely, 2^{123103311431532} is an apocalyptic number.

123103311431532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123103311431532 is an abundant number, since it is smaller than the sum of its proper divisors (164911326383988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123103311431532 is a wasteful number, since it uses less digits than its factorization.

123103311431532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334082 (or 334080 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

Adding to 123103311431532 its reverse (235134113301321), we get a palindrome (358237424732853).

The spelling of 123103311431532 in words is "one hundred twenty-three trillion, one hundred three billion, three hundred eleven million, four hundred thirty-one thousand, five hundred thirty-two".