123301402251240 has 32 divisors (see below), whose sum is σ = 369904206754080. Its totient is φ = 32880373933632.

The previous prime is 123301402251221. The next prime is 123301402251259. The reversal of 123301402251240 is 42152204103321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123301402251221) and next prime (123301402251259).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 123301402251198 and 123301402251207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513755842594 + ... + 513755842833.

It is an arithmetic number, because the mean of its divisors is an integer number (11559506461065).

Almost surely, 2^{123301402251240} is an apocalyptic number.

123301402251240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123301402251240 is an abundant number, since it is smaller than the sum of its proper divisors (246602804502840).

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

123301402251240 is a wasteful number, since it uses less digits than its factorization.

123301402251240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027511685441 (or 1027511685437 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 123301402251240 its reverse (42152204103321), we get a palindrome (165453606354561).

The spelling of 123301402251240 in words is "one hundred twenty-three trillion, three hundred one billion, four hundred two million, two hundred fifty-one thousand, two hundred forty".