20631056001 has 8 divisors (see below), whose sum is σ = 27515888064. Its totient is φ = 13750130640.

The previous prime is 20631055997. The next prime is 20631056009. The reversal of 20631056001 is 10065013602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20631056001 - 2² = 20631055997 is a prime.

It is a super-2 number, since 2×20631056001² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20631056009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964330 + ... + 985491.

It is an arithmetic number, because the mean of its divisors is an integer number (3439486008).

Almost surely, 2^20631056001 is an apocalyptic number.

It is an amenable number.

20631056001 is a deficient number, since it is larger than the sum of its proper divisors (6884832063).

20631056001 is a wasteful number, since it uses less digits than its factorization.

20631056001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953351.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 20631056001 its reverse (10065013602), we get a palindrome (30696069603).

The spelling of 20631056001 in words is "twenty billion, six hundred thirty-one million, fifty-six thousand, one".