1002402132123 has 32 divisors (see below), whose sum is σ = 1538777397760. Its totient is φ = 568576039680.

The previous prime is 1002402132089. The next prime is 1002402132157. The reversal of 1002402132123 is 3212312042001.

It is an interprime number because it is at equal distance from previous prime (1002402132089) and next prime (1002402132157).

It is not a de Polignac number, because 1002402132123 - 2⁸ = 1002402131867 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002402132123.

It is not an unprimeable number, because it can be changed into a prime (1002402132023) 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, 1276911 + ... + 1906647.

It is an arithmetic number, because the mean of its divisors is an integer number (48086793680).

Almost surely, 2^{1002402132123} is an apocalyptic number.

1002402132123 is a deficient number, since it is larger than the sum of its proper divisors (536375265637).

1002402132123 is a wasteful number, since it uses less digits than its factorization.

1002402132123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630307.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1002402132123 its reverse (3212312042001), we get a palindrome (4214714174124).

The spelling of 1002402132123 in words is "one trillion, two billion, four hundred two million, one hundred thirty-two thousand, one hundred twenty-three".