123012240124531 has 8 divisors (see below), whose sum is σ = 125335086413040. Its totient is φ = 120689462748192.

The previous prime is 123012240124523. The next prime is 123012240124591. The reversal of 123012240124531 is 135421042210321.

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

It is a cyclic number.

It is not a de Polignac number, because 123012240124531 - 2³ = 123012240124523 is a prime.

It is a super-2 number, since 2×123012240124531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123012240124493 and 123012240124502.

It is not an unprimeable number, because it can be changed into a prime (123012240124591) 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, 13617141 + ... + 20771398.

It is an arithmetic number, because the mean of its divisors is an integer number (15666885801630).

Almost surely, 2^{123012240124531} is an apocalyptic number.

123012240124531 is a deficient number, since it is larger than the sum of its proper divisors (2322846288509).

123012240124531 is an equidigital number, since it uses as much as digits as its factorization.

123012240124531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34456085.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 123012240124531 its reverse (135421042210321), we get a palindrome (258433282334852).

The spelling of 123012240124531 in words is "one hundred twenty-three trillion, twelve billion, two hundred forty million, one hundred twenty-four thousand, five hundred thirty-one".