1020402013100 has 36 divisors (see below), whose sum is σ = 2214339408624. Its totient is φ = 408148447680.

The previous prime is 1020402013097. The next prime is 1020402013231. The reversal of 1020402013100 is 13102040201.

It is a super-2 number, since 2×1020402013100² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3625034 + ... + 3896366.

Almost surely, 2^{1020402013100} is an apocalyptic number.

1020402013100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020402013100 is an abundant number, since it is smaller than the sum of its proper divisors (1193937395524).

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

1020402013100 is a wasteful number, since it uses less digits than its factorization.

1020402013100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308954 (or 308947 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1020402013100 its reverse (13102040201), we get a palindrome (1033504053301).

The spelling of 1020402013100 in words is "one trillion, twenty billion, four hundred two million, thirteen thousand, one hundred".