1213246111608 has 48 divisors (see below), whose sum is σ = 3287449741680. Its totient is φ = 404221542144.

The previous prime is 1213246111607. The next prime is 1213246111631. The reversal of 1213246111608 is 8061116423121.

1213246111608 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 2 + 46 + 1 + 1 + 1 + 608 = 666.

It is a super-2 number, since 2×1213246111608² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213246111607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3886785 + ... + 4187312.

It is an arithmetic number, because the mean of its divisors is an integer number (68488536285).

Almost surely, 2^{1213246111608} is an apocalyptic number.

1213246111608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1213246111608 is an abundant number, since it is smaller than the sum of its proper divisors (2074203630072).

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

1213246111608 is a wasteful number, since it uses less digits than its factorization.

1213246111608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8076196 (or 8076189 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 1213246111608 in words is "one trillion, two hundred thirteen billion, two hundred forty-six million, one hundred eleven thousand, six hundred eight".