1213515531102 has 32 divisors (see below), whose sum is σ = 2815149042432. Its totient is φ = 341543816064.

The previous prime is 1213515531097. The next prime is 1213515531131. The reversal of 1213515531102 is 2011355153121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213515531102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215618283 + ... + 215623910.

It is an arithmetic number, because the mean of its divisors is an integer number (87973407576).

Almost surely, 2^{1213515531102} is an apocalyptic number.

1213515531102 is an abundant number, since it is smaller than the sum of its proper divisors (1601633511330).

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

1213515531102 is a wasteful number, since it uses less digits than its factorization.

1213515531102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431242272.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 1213515531102 in words is "one trillion, two hundred thirteen billion, five hundred fifteen million, five hundred thirty-one thousand, one hundred two".