3100002001020 has 36 divisors (see below), whose sum is σ = 9403339403640. Its totient is φ = 826667200224.

The previous prime is 3100002001009. The next prime is 3100002001037. The reversal of 3100002001020 is 201002000013.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×3100002001020² (a number of 26 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 3100002000993 and 3100002001011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8611116490 + ... + 8611116849.

Almost surely, 2^{3100002001020} is an apocalyptic number.

3100002001020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3100002001020 is an abundant number, since it is smaller than the sum of its proper divisors (6303337402620).

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

3100002001020 is a wasteful number, since it uses less digits than its factorization.

3100002001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17222233354 (or 17222233349 counting only the distinct ones).

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

Adding to 3100002001020 its reverse (201002000013), we get a palindrome (3301004001033).

The spelling of 3100002001020 in words is "three trillion, one hundred billion, two million, one thousand, twenty".