2031002100 has 90 divisors (see below), whose sum is σ = 6583732694. Its totient is φ = 541598400.

The previous prime is 2031002081. The next prime is 2031002167. The reversal of 2031002100 is 12001302.

It is a happy number.

2031002100 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 174081636 + 1856920464 = 13194^2 + 43092^2 .

It is a tau number, because it is divible by the number of its divisors (90).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 117271 + ... + 133470.

Almost surely, 2^2031002100 is an apocalyptic number.

2031002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031002100 is an abundant number, since it is smaller than the sum of its proper divisors (4552730594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031002100 is a wasteful number, since it uses less digits than its factorization.

2031002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250767 (or 250751 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2031002100 is about 45066.6406558110. The cubic root of 2031002100 is about 1266.3977322246.

Adding to 2031002100 its reverse (12001302), we get a palindrome (2043003402).

The spelling of 2031002100 in words is "two billion, thirty-one million, two thousand, one hundred".