20102001011993 has 8 divisors (see below), whose sum is σ = 20114926924320. Its totient is φ = 20089075564800.

The previous prime is 20102001011947. The next prime is 20102001012001. The reversal of 20102001011993 is 39911010020102.

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

It is a cyclic number.

It is not a de Polignac number, because 20102001011993 - 2¹² = 20102001007897 is a prime.

It is a super-2 number, since 2×20102001011993² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102001013993) 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, 140091038 + ... + 140234456.

It is an arithmetic number, because the mean of its divisors is an integer number (2514365865540).

Almost surely, 2^{20102001011993} is an apocalyptic number.

It is an amenable number.

20102001011993 is a deficient number, since it is larger than the sum of its proper divisors (12925912327).

20102001011993 is a wasteful number, since it uses less digits than its factorization.

20102001011993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232567.

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 20102001011993 in words is "twenty trillion, one hundred two billion, one million, eleven thousand, nine hundred ninety-three".