111641213643512 has 32 divisors (see below), whose sum is σ = 239621435090400. Its totient is φ = 47768181819264.

The previous prime is 111641213643511. The next prime is 111641213643517. The reversal of 111641213643512 is 215346312146111.

It is a self number, because there is not a number n which added to its sum of digits gives 111641213643512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111641213643511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1626061187 + ... + 1626129842.

It is an arithmetic number, because the mean of its divisors is an integer number (7488169846575).

Almost surely, 2^{111641213643512} is an apocalyptic number.

It is an amenable number.

111641213643512 is an abundant number, since it is smaller than the sum of its proper divisors (127980221446888).

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

111641213643512 is a wasteful number, since it uses less digits than its factorization.

111641213643512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252191655 (or 3252191651 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

Adding to 111641213643512 its reverse (215346312146111), we get a palindrome (326987525789623).

The spelling of 111641213643512 in words is "one hundred eleven trillion, six hundred forty-one billion, two hundred thirteen million, six hundred forty-three thousand, five hundred twelve".