20630031000 has 64 divisors (see below), whose sum is σ = 64365706080. Its totient is φ = 5501340800.

The previous prime is 20630030977. The next prime is 20630031017. The reversal of 20630031000 is 13003602.

It is a super-2 number, since 2×20630031000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3435339 + ... + 3441338.

Almost surely, 2^20630031000 is an apocalyptic number.

20630031000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20630031000 is an abundant number, since it is smaller than the sum of its proper divisors (43735675080).

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

20630031000 is a wasteful number, since it uses less digits than its factorization.

20630031000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6876701 (or 6876687 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20630031000 its reverse (13003602), we get a palindrome (20643034602).

The spelling of 20630031000 in words is "twenty billion, six hundred thirty million, thirty-one thousand".