1213387870284 has 60 divisors (see below), whose sum is σ = 3216712192848. Its totient is φ = 398765959200.

The previous prime is 1213387870271. The next prime is 1213387870297. The reversal of 1213387870284 is 4820787833121.

1213387870284 is a `hidden beast` number, since 1 + 21 + 338 + 7 + 8 + 7 + 0 + 284 = 666.

It is an interprime number because it is at equal distance from previous prime (1213387870271) and next prime (1213387870297).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1213387870284.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26350407 + ... + 26396414.

Almost surely, 2^{1213387870284} is an apocalyptic number.

It is an amenable number.

1213387870284 is an abundant number, since it is smaller than the sum of its proper divisors (2003324322564).

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

1213387870284 is a wasteful number, since it uses less digits than its factorization.

1213387870284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52746908 (or 52746897 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 1213387870284 in words is "one trillion, two hundred thirteen billion, three hundred eighty-seven million, eight hundred seventy thousand, two hundred eighty-four".