123112001121000 has 64 divisors (see below), whose sum is σ = 384109443506880. Its totient is φ = 32829866964800.

The previous prime is 123112001120981. The next prime is 123112001121017. The reversal of 123112001121000 is 121100211321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20518663854 + ... + 20518669853.

It is an arithmetic number, because the mean of its divisors is an integer number (6001710054795).

Almost surely, 2^{123112001121000} is an apocalyptic number.

123112001121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123112001121000 is an abundant number, since it is smaller than the sum of its proper divisors (260997442385880).

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

123112001121000 is a wasteful number, since it uses less digits than its factorization.

123112001121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41037333731 (or 41037333717 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 123112001121000 its reverse (121100211321), we get a palindrome (123233101332321).

The spelling of 123112001121000 in words is "one hundred twenty-three trillion, one hundred twelve billion, one million, one hundred twenty-one thousand".