1210020010031 has 12 divisors (see below), whose sum is σ = 1434132306072. Its totient is φ = 1017590949648.

The previous prime is 1210020010007. The next prime is 1210020010079. The reversal of 1210020010031 is 1300100200121.

It is not a de Polignac number, because 1210020010031 - 2¹⁸ = 1210019747887 is a prime.

It is a super-2 number, since 2×1210020010031² (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 = 1210020009994 and 1210020010021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210020010531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232962365 + ... + 232967558.

It is an arithmetic number, because the mean of its divisors is an integer number (119511025506).

Almost surely, 2^{1210020010031} is an apocalyptic number.

1210020010031 is a deficient number, since it is larger than the sum of its proper divisors (224112296041).

1210020010031 is an equidigital number, since it uses as much as digits as its factorization.

1210020010031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465929990 (or 465929983 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1210020010031 its reverse (1300100200121), we get a palindrome (2510120210152).

The spelling of 1210020010031 in words is "one trillion, two hundred ten billion, twenty million, ten thousand, thirty-one".