1021130120031 has 16 divisors (see below), whose sum is σ = 1556079224064. Its totient is φ = 583476142464.

The previous prime is 1021130120011. The next prime is 1021130120063. The reversal of 1021130120031 is 1300210311201.

It is a happy number.

It is not a de Polignac number, because 1021130120031 - 2¹¹ = 1021130117983 is a prime.

It is a super-2 number, since 2×1021130120031² (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 (1021130120011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642906 + ... + 1567031.

It is an arithmetic number, because the mean of its divisors is an integer number (97254951504).

Almost surely, 2^{1021130120031} is an apocalyptic number.

1021130120031 is a deficient number, since it is larger than the sum of its proper divisors (534949104033).

1021130120031 is a wasteful number, since it uses less digits than its factorization.

1021130120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231950.

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

Adding to 1021130120031 its reverse (1300210311201), we get a palindrome (2321340431232).

The spelling of 1021130120031 in words is "one trillion, twenty-one billion, one hundred thirty million, one hundred twenty thousand, thirty-one".