20101001995 has 8 divisors (see below), whose sum is σ = 24392227680. Its totient is φ = 15900118080.

The previous prime is 20101001983. The next prime is 20101002023. The reversal of 20101001995 is 59910010102.

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

It is not a de Polignac number, because 20101001995 - 2⁷ = 20101001867 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22584951 + ... + 22585840.

It is an arithmetic number, because the mean of its divisors is an integer number (3049028460).

Almost surely, 2^20101001995 is an apocalyptic number.

20101001995 is a deficient number, since it is larger than the sum of its proper divisors (4291225685).

20101001995 is an equidigital number, since it uses as much as digits as its factorization.

20101001995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45170885.

The product of its (nonzero) digits is 810, while the sum is 28.

The spelling of 20101001995 in words is "twenty billion, one hundred one million, one thousand, nine hundred ninety-five".