123402000040050 has 48 divisors (see below), whose sum is σ = 308238664900320. Its totient is φ = 32670457559040.

The previous prime is 123402000040003. The next prime is 123402000040057. The reversal of 123402000040050 is 50040000204321.

It is a super-2 number, since 2×123402000040050² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123402000039999 and 123402000040026.

It is not an unprimeable number, because it can be changed into a prime (123402000040057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2959259727 + ... + 2959301426.

It is an arithmetic number, because the mean of its divisors is an integer number (6421638852090).

Almost surely, 2^{123402000040050} is an apocalyptic number.

123402000040050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123402000040050 is an abundant number, since it is smaller than the sum of its proper divisors (184836664860270).

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

123402000040050 is a wasteful number, since it uses less digits than its factorization.

123402000040050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5918561307 (or 5918561302 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 123402000040050 its reverse (50040000204321), we get a palindrome (173442000244371).

The spelling of 123402000040050 in words is "one hundred twenty-three trillion, four hundred two billion, forty thousand, fifty".