123031140431234 has 32 divisors (see below), whose sum is σ = 211891783284480. Its totient is φ = 52482448387008.

The previous prime is 123031140431141. The next prime is 123031140431263. The reversal of 123031140431234 is 432134041130321.

It is a self number, because there is not a number n which added to its sum of digits gives 123031140431234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5819819 + ... + 16731185.

It is an arithmetic number, because the mean of its divisors is an integer number (6621618227640).

Almost surely, 2^{123031140431234} is an apocalyptic number.

123031140431234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123031140431234 is a deficient number, since it is larger than the sum of its proper divisors (88860642853246).

123031140431234 is a wasteful number, since it uses less digits than its factorization.

123031140431234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10915122.

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

Adding to 123031140431234 its reverse (432134041130321), we get a palindrome (555165181561555).

The spelling of 123031140431234 in words is "one hundred twenty-three trillion, thirty-one billion, one hundred forty million, four hundred thirty-one thousand, two hundred thirty-four".