1010111156388 has 36 divisors (see below), whose sum is σ = 2622345633180. Its totient is φ = 327603617856.

The previous prime is 1010111156347. The next prime is 1010111156399. The reversal of 1010111156388 is 8836511110101.

1010111156388 is a `hidden beast` number, since 1 + 0 + 1 + 0 + 1 + 1 + 1 + 15 + 638 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 944865649764 + 65245506624 = 972042^2 + 255432^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379169523 + ... + 379172186.

It is an arithmetic number, because the mean of its divisors is an integer number (72842934255).

Almost surely, 2^{1010111156388} is an apocalyptic number.

1010111156388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1010111156388 is an abundant number, since it is smaller than the sum of its proper divisors (1612234476792).

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

1010111156388 is a wasteful number, since it uses less digits than its factorization.

1010111156388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758341756 (or 758341751 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 36.

Adding to 1010111156388 its reverse (8836511110101), we get a palindrome (9846622266489).

The spelling of 1010111156388 in words is "one trillion, ten billion, one hundred eleven million, one hundred fifty-six thousand, three hundred eighty-eight".