1021231110023 has 8 divisors (see below), whose sum is σ = 1061868754560. Its totient is φ = 981074384640.

The previous prime is 1021231110013. The next prime is 1021231110037. The reversal of 1021231110023 is 3200111321201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021231110023 - 2²² = 1021226915719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021231109983 and 1021231110010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021231110013) 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, 120225458 + ... + 120233951.

It is an arithmetic number, because the mean of its divisors is an integer number (132733594320).

Almost surely, 2^{1021231110023} is an apocalyptic number.

1021231110023 is a deficient number, since it is larger than the sum of its proper divisors (40637644537).

1021231110023 is a wasteful number, since it uses less digits than its factorization.

1021231110023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240459577.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1021231110023 its reverse (3200111321201), we get a palindrome (4221342431224).

The spelling of 1021231110023 in words is "one trillion, twenty-one billion, two hundred thirty-one million, one hundred ten thousand, twenty-three".