123402341331140 has 24 divisors (see below), whose sum is σ = 272784122943360. Its totient is φ = 46762992504288.

The previous prime is 123402341331079. The next prime is 123402341331149. The reversal of 123402341331140 is 41133143204321.

It is a junction number, because it is equal to n+sod(n) for n = 123402341331097 and 123402341331106.

It is not an unprimeable number, because it can be changed into a prime (123402341331149) 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, 162371501372 + ... + 162371502131.

It is an arithmetic number, because the mean of its divisors is an integer number (11366005122640).

Almost surely, 2^{123402341331140} is an apocalyptic number.

123402341331140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123402341331140 is an abundant number, since it is smaller than the sum of its proper divisors (149381781612220).

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

123402341331140 is a wasteful number, since it uses less digits than its factorization.

123402341331140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324743003531 (or 324743003529 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 123402341331140 its reverse (41133143204321), we get a palindrome (164535484535461).

The spelling of 123402341331140 in words is "one hundred twenty-three trillion, four hundred two billion, three hundred forty-one million, three hundred thirty-one thousand, one hundred forty".