123032131320 has 128 divisors (see below), whose sum is σ = 427765847040. Its totient is φ = 27725537280.

The previous prime is 123032131307. The next prime is 123032131367. The reversal of 123032131320 is 23131230321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 971817 + ... + 1091096.

It is an arithmetic number, because the mean of its divisors is an integer number (3341920680).

Almost surely, 2^123032131320 is an apocalyptic number.

123032131320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123032131320 is an abundant number, since it is smaller than the sum of its proper divisors (304733715720).

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

123032131320 is a wasteful number, since it uses less digits than its factorization.

123032131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063005 (or 2063001 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123032131320 its reverse (23131230321), we get a palindrome (146163361641).

Subtracting from 123032131320 its reverse (23131230321), we obtain a palindrome (99900900999).

The spelling of 123032131320 in words is "one hundred twenty-three billion, thirty-two million, one hundred thirty-one thousand, three hundred twenty".