1031212320031 has 8 divisors (see below), whose sum is σ = 1050883450560. Its totient is φ = 1011549126432.

The previous prime is 1031212320011. The next prime is 1031212320037. The reversal of 1031212320031 is 1300232121301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1031212320031 - 2¹¹ = 1031212317983 is a prime.

It is a super-2 number, since 2×1031212320031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031212319990 and 1031212320008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031212320037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1721575 + ... + 2241928.

It is an arithmetic number, because the mean of its divisors is an integer number (131360431320).

Almost surely, 2^{1031212320031} is an apocalyptic number.

1031212320031 is a deficient number, since it is larger than the sum of its proper divisors (19671130529).

1031212320031 is an equidigital number, since it uses as much as digits as its factorization.

1031212320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968465.

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

Adding to 1031212320031 its reverse (1300232121301), we get a palindrome (2331444441332).

The spelling of 1031212320031 in words is "one trillion, thirty-one billion, two hundred twelve million, three hundred twenty thousand, thirty-one".