1031213020031 has 8 divisors (see below), whose sum is σ = 1105130757984. Its totient is φ = 959718814560.

The previous prime is 1031213020027. The next prime is 1031213020039. The reversal of 1031213020031 is 1300203121301.

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 1031213020031 - 2² = 1031213020027 is a prime.

It is a super-2 number, since 2×1031213020031² (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 = 1031213019991 and 1031213020009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031213020039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605882240 + ... + 605883941.

It is an arithmetic number, because the mean of its divisors is an integer number (138141344748).

Almost surely, 2^{1031213020031} is an apocalyptic number.

1031213020031 is a deficient number, since it is larger than the sum of its proper divisors (73917737953).

1031213020031 is a wasteful number, since it uses less digits than its factorization.

1031213020031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211766241.

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

Adding to 1031213020031 its reverse (1300203121301), we get a palindrome (2331416141332).

The spelling of 1031213020031 in words is "one trillion, thirty-one billion, two hundred thirteen million, twenty thousand, thirty-one".