13121202010100 has 36 divisors (see below), whose sum is σ = 28503395981004. Its totient is φ = 5242879399680.

The previous prime is 13121202010019. The next prime is 13121202010127. The reversal of 13121202010100 is 101020212131.

It can be written as a sum of positive squares in 6 ways, for example, as 94920680464 + 13026281329636 = 308092^2 + 3609194^2 .

It is a congruent number.

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, 69923387 + ... + 70110786.

Almost surely, 2^{13121202010100} is an apocalyptic number.

13121202010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13121202010100 is an abundant number, since it is smaller than the sum of its proper divisors (15382193970904).

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

13121202010100 is a wasteful number, since it uses less digits than its factorization.

13121202010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140035124 (or 140035117 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 13121202010100 its reverse (101020212131), we get a palindrome (13222222222231).

The spelling of 13121202010100 in words is "thirteen trillion, one hundred twenty-one billion, two hundred two million, ten thousand, one hundred".