111361621315 has 32 divisors (see below), whose sum is σ = 157940158464. Its totient is φ = 73763464320.

The previous prime is 111361621309. The next prime is 111361621337. The reversal of 111361621315 is 513126163111.

It is not a de Polignac number, because 111361621315 - 2¹¹ = 111361619267 is a prime.

It is a super-3 number, since 3×111361621315³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 499677 + ... + 687313.

It is an arithmetic number, because the mean of its divisors is an integer number (4935629952).

Almost surely, 2^111361621315 is an apocalyptic number.

111361621315 is a deficient number, since it is larger than the sum of its proper divisors (46578537149).

111361621315 is a wasteful number, since it uses less digits than its factorization.

111361621315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188227.

The product of its digits is 3240, while the sum is 31.

Adding to 111361621315 its reverse (513126163111), we get a palindrome (624487784426).

The spelling of 111361621315 in words is "one hundred eleven billion, three hundred sixty-one million, six hundred twenty-one thousand, three hundred fifteen".