1012111110231 has 16 divisors (see below), whose sum is σ = 1457600193504. Its totient is φ = 620989415424.

The previous prime is 1012111110167. The next prime is 1012111110233. The reversal of 1012111110231 is 1320111112101.

It is not a de Polignac number, because 1012111110231 - 2⁶ = 1012111110167 is a prime.

It is a super-2 number, since 2×1012111110231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1012111110231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012111110233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38490666 + ... + 38516951.

It is an arithmetic number, because the mean of its divisors is an integer number (91100012094).

Almost surely, 2^{1012111110231} is an apocalyptic number.

1012111110231 is a deficient number, since it is larger than the sum of its proper divisors (445489083273).

1012111110231 is a wasteful number, since it uses less digits than its factorization.

1012111110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77007970.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 1012111110231 its reverse (1320111112101), we get a palindrome (2332222222332).

The spelling of 1012111110231 in words is "one trillion, twelve billion, one hundred eleven million, one hundred ten thousand, two hundred thirty-one".