1031231213022 has 32 divisors (see below), whose sum is σ = 2098649710080. Its totient is φ = 337745572640.

The previous prime is 1031231213011. The next prime is 1031231213039. The reversal of 1031231213022 is 2203121321301.

It is a self number, because there is not a number n which added to its sum of digits gives 1031231213022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4006122 + ... + 4255757.

It is an arithmetic number, because the mean of its divisors is an integer number (65582803440).

Almost surely, 2^{1031231213022} is an apocalyptic number.

1031231213022 is an abundant number, since it is smaller than the sum of its proper divisors (1067418497058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031231213022 is a wasteful number, since it uses less digits than its factorization.

1031231213022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8262248.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1031231213022 its reverse (2203121321301), we get a palindrome (3234352534323).

It can be divided in two parts, 1031231 and 213022, that added together give a triangular number (1244253 = T₁₅₇₇).

The spelling of 1031231213022 in words is "one trillion, thirty-one billion, two hundred thirty-one million, two hundred thirteen thousand, twenty-two".