1031220122031 has 64 divisors (see below), whose sum is σ = 1673464320000. Its totient is φ = 622417292640.

The previous prime is 1031220122021. The next prime is 1031220122039. The reversal of 1031220122031 is 1302210221301.

It is not a de Polignac number, because 1031220122031 - 2⁵ = 1031220121999 is a prime.

It is a super-2 number, since 2×1031220122031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1031220121995 and 1031220122013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031220122039) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 277282390 + ... + 277286108.

It is an arithmetic number, because the mean of its divisors is an integer number (26147880000).

Almost surely, 2^{1031220122031} is an apocalyptic number.

1031220122031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1031220122031 is a deficient number, since it is larger than the sum of its proper divisors (642244197969).

1031220122031 is a wasteful number, since it uses less digits than its factorization.

1031220122031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7321 (or 7315 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1031220122031 its reverse (1302210221301), we get a palindrome (2333430343332).

The spelling of 1031220122031 in words is "one trillion, thirty-one billion, two hundred twenty million, one hundred twenty-two thousand, thirty-one".