1031012120031 has 8 divisors (see below), whose sum is σ = 1375321331760. Its totient is φ = 687022160832.

The previous prime is 1031012120003. The next prime is 1031012120053. The reversal of 1031012120031 is 1300212101301.

It is a happy number.

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

It is not a de Polignac number, because 1031012120031 - 2⁹ = 1031012119519 is a prime.

It is a super-2 number, since 2×1031012120031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031012120071) 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, 79805596 + ... + 79818513.

It is an arithmetic number, because the mean of its divisors is an integer number (171915166470).

Almost surely, 2^{1031012120031} is an apocalyptic number.

1031012120031 is a deficient number, since it is larger than the sum of its proper divisors (344309211729).

1031012120031 is a wasteful number, since it uses less digits than its factorization.

1031012120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159626265.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1031012120031 its reverse (1300212101301), we get a palindrome (2331224221332).

The spelling of 1031012120031 in words is "one trillion, thirty-one billion, twelve million, one hundred twenty thousand, thirty-one".