1002353031020 has 96 divisors (see below), whose sum is σ = 2402860251456. Its totient is φ = 347949388800.

The previous prime is 1002353031007. The next prime is 1002353031061. The reversal of 1002353031020 is 201303532001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1002353030983 and 1002353031001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 730271 + ... + 1593110.

It is an arithmetic number, because the mean of its divisors is an integer number (25029794286).

Almost surely, 2^{1002353031020} is an apocalyptic number.

1002353031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002353031020 is an abundant number, since it is smaller than the sum of its proper divisors (1400507220436).

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

1002353031020 is a wasteful number, since it uses less digits than its factorization.

1002353031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323491 (or 2323489 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 1002353031020 its reverse (201303532001), we get a palindrome (1203656563021).

The spelling of 1002353031020 in words is "one trillion, two billion, three hundred fifty-three million, thirty-one thousand, twenty".