1000002101031 has 40 divisors (see below), whose sum is σ = 1516362705264. Its totient is φ = 656615393280.

The previous prime is 1000002100967. The next prime is 1000002101039. The reversal of 1000002101031 is 1301012000001.

It is not a de Polignac number, because 1000002101031 - 2⁶ = 1000002100967 is a prime.

It is a super-2 number, since 2×1000002101031² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000002101039) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52420711 + ... + 52439783.

Almost surely, 2^{1000002101031} is an apocalyptic number.

1000002101031 is a deficient number, since it is larger than the sum of its proper divisors (516360604233).

1000002101031 is an equidigital number, since it uses as much as digits as its factorization.

1000002101031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28813 (or 28804 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 1000002101031 its reverse (1301012000001), we get a palindrome (2301014101032).

The spelling of 1000002101031 in words is "one trillion, two million, one hundred one thousand, thirty-one".