20401971130893 has 32 divisors (see below), whose sum is σ = 30403760510592. Its totient is φ = 12061515161600.

The previous prime is 20401971130889. The next prime is 20401971130949. The reversal of 20401971130893 is 39803117910402.

It is a cyclic number.

It is not a de Polignac number, because 20401971130893 - 2² = 20401971130889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20401971130813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8359255 + ... + 10520507.

It is an arithmetic number, because the mean of its divisors is an integer number (950117515956).

Almost surely, 2^{20401971130893} is an apocalyptic number.

It is an amenable number.

20401971130893 is a deficient number, since it is larger than the sum of its proper divisors (10001789379699).

20401971130893 is a wasteful number, since it uses less digits than its factorization.

20401971130893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168285.

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 20401971130893 in words is "twenty trillion, four hundred one billion, nine hundred seventy-one million, one hundred thirty thousand, eight hundred ninety-three".