2002400313123 has 32 divisors (see below), whose sum is σ = 3065428058112. Its totient is φ = 1138930884000.

The previous prime is 2002400313113. The next prime is 2002400313127. The reversal of 2002400313123 is 3213130042002.

It is not a de Polignac number, because 2002400313123 - 2²² = 2002396118819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2002400313123.

It is not an unprimeable number, because it can be changed into a prime (2002400313127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5229148 + ... + 5598998.

It is an arithmetic number, because the mean of its divisors is an integer number (95794626816).

Almost surely, 2^{2002400313123} is an apocalyptic number.

2002400313123 is a deficient number, since it is larger than the sum of its proper divisors (1063027744989).

2002400313123 is a wasteful number, since it uses less digits than its factorization.

2002400313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371055.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2002400313123 its reverse (3213130042002), we get a palindrome (5215530355125).

The spelling of 2002400313123 in words is "two trillion, two billion, four hundred million, three hundred thirteen thousand, one hundred twenty-three".