123001002131340 has 48 divisors (see below), whose sum is σ = 344907056164608. Its totient is φ = 32752243406784.

The previous prime is 123001002131291. The next prime is 123001002131341. The reversal of 123001002131340 is 43131200100321.

It is a super-2 number, since 2×123001002131340² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123001002131341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1500703312 + ... + 1500785271.

It is an arithmetic number, because the mean of its divisors is an integer number (7185563670096).

Almost surely, 2^{123001002131340} is an apocalyptic number.

123001002131340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123001002131340 is an abundant number, since it is smaller than the sum of its proper divisors (221906054033268).

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

123001002131340 is a wasteful number, since it uses less digits than its factorization.

123001002131340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001489278 (or 3001489276 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123001002131340 its reverse (43131200100321), we get a palindrome (166132202231661).

The spelling of 123001002131340 in words is "one hundred twenty-three trillion, one billion, two million, one hundred thirty-one thousand, three hundred forty".