1020233131 has 4 divisors (see below), whose sum is σ = 1022045832. Its totient is φ = 1018420432.

The previous prime is 1020233059. The next prime is 1020233171. The reversal of 1020233131 is 1313320201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020233131 - 2²⁵ = 986678699 is a prime.

It is a super-2 number, since 2×1020233131² = 2081751283180126322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020233171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905506 + ... + 906631.

It is an arithmetic number, because the mean of its divisors is an integer number (255511458).

Almost surely, 2^1020233131 is an apocalyptic number.

1020233131 is a deficient number, since it is larger than the sum of its proper divisors (1812701).

1020233131 is an equidigital number, since it uses as much as digits as its factorization.

1020233131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812700.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1020233131 is about 31941.0884441968. The cubic root of 1020233131 is about 1006.6993948811.

Adding to 1020233131 its reverse (1313320201), we get a palindrome (2333553332).

The spelling of 1020233131 in words is "one billion, twenty million, two hundred thirty-three thousand, one hundred thirty-one".