1012323131 has 4 divisors (see below), whose sum is σ = 1012404264. Its totient is φ = 1012242000.

The previous prime is 1012323079. The next prime is 1012323139. The reversal of 1012323131 is 1313232101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1012323131 - 2¹⁴ = 1012306747 is a prime.

It is a super-2 number, since 2×1012323131² = 2049596243115286322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012323139) 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, 17465 + ... + 48266.

It is an arithmetic number, because the mean of its divisors is an integer number (253101066).

Almost surely, 2^1012323131 is an apocalyptic number.

1012323131 is a deficient number, since it is larger than the sum of its proper divisors (81133).

1012323131 is an equidigital number, since it uses as much as digits as its factorization.

1012323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81132.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1012323131 is about 31817.0258038051. The cubic root of 1012323131 is about 1004.0909516262.

Adding to 1012323131 its reverse (1313232101), we get a palindrome (2325555232).

It can be divided in two parts, 101 and 2323131, that added together give a palindrome (2323232).

The spelling of 1012323131 in words is "one billion, twelve million, three hundred twenty-three thousand, one hundred thirty-one".