1031132023021 has 4 divisors (see below), whose sum is σ = 1032254039200. Its totient is φ = 1030010006844.

The previous prime is 1031132023007. The next prime is 1031132023043. The reversal of 1031132023021 is 1203202311301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1031132023021 - 2⁹ = 1031132022509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031132023021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031132023091) 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, 561006711 + ... + 561008548.

It is an arithmetic number, because the mean of its divisors is an integer number (258063509800).

Almost surely, 2^{1031132023021} is an apocalyptic number.

It is an amenable number.

1031132023021 is a deficient number, since it is larger than the sum of its proper divisors (1122016179).

1031132023021 is an equidigital number, since it uses as much as digits as its factorization.

1031132023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122016178.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1031132023021 its reverse (1203202311301), we get a palindrome (2234334334322).

The spelling of 1031132023021 in words is "one trillion, thirty-one billion, one hundred thirty-two million, twenty-three thousand, twenty-one".