1011021313023 has 24 divisors (see below), whose sum is σ = 1461847645440. Its totient is φ = 673329756240.

The previous prime is 1011021313019. The next prime is 1011021313069. The reversal of 1011021313023 is 3203131201101.

It is not a de Polignac number, because 1011021313023 - 2² = 1011021313019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011021312987 and 1011021313005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011021313823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79208640 + ... + 79221402.

It is an arithmetic number, because the mean of its divisors is an integer number (60910318560).

Almost surely, 2^{1011021313023} is an apocalyptic number.

1011021313023 is a deficient number, since it is larger than the sum of its proper divisors (450826332417).

1011021313023 is a wasteful number, since it uses less digits than its factorization.

1011021313023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21019 (or 21016 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1011021313023 its reverse (3203131201101), we get a palindrome (4214152514124).

The spelling of 1011021313023 in words is "one trillion, eleven billion, twenty-one million, three hundred thirteen thousand, twenty-three".