1181301807412 has 12 divisors (see below), whose sum is σ = 2123150546020. Its totient is φ = 574687365696.

The previous prime is 1181301807409. The next prime is 1181301807437. The reversal of 1181301807412 is 2147081031811.

It can be written as a sum of positive squares in 2 ways, for example, as 829458276516 + 351843530896 = 910746^2 + 593164^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3990884337 + ... + 3990884632.

Almost surely, 2^{1181301807412} is an apocalyptic number.

It is an amenable number.

1181301807412 is a deficient number, since it is larger than the sum of its proper divisors (941848738608).

1181301807412 is a wasteful number, since it uses less digits than its factorization.

1181301807412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7981769010 (or 7981769008 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 37.

The spelling of 1181301807412 in words is "one trillion, one hundred eighty-one billion, three hundred one million, eight hundred seven thousand, four hundred twelve".