1020013232231 has 8 divisors (see below), whose sum is σ = 1183128355200. Its totient is φ = 861247846008.

The previous prime is 1020013232191. The next prime is 1020013232257. The reversal of 1020013232231 is 1322323100201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020013232231 is a prime.

It is a super-2 number, since 2×1020013232231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020013232261) 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, 1087433681 + ... + 1087434618.

It is an arithmetic number, because the mean of its divisors is an integer number (147891044400).

Almost surely, 2^{1020013232231} is an apocalyptic number.

1020013232231 is a deficient number, since it is larger than the sum of its proper divisors (163115122969).

1020013232231 is an equidigital number, since it uses as much as digits as its factorization.

1020013232231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174868373.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1020013232231 its reverse (1322323100201), we get a palindrome (2342336332432).

The spelling of 1020013232231 in words is "one trillion, twenty billion, thirteen million, two hundred thirty-two thousand, two hundred thirty-one".