10001901011 has 4 divisors (see below), whose sum is σ = 10005781800. Its totient is φ = 9998020224.

The previous prime is 10001900999. The next prime is 10001901043. The reversal of 10001901011 is 11010910001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10001901011 - 2²² = 9997706707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001901311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1936526 + ... + 1941683.

It is an arithmetic number, because the mean of its divisors is an integer number (2501445450).

Almost surely, 2^10001901011 is an apocalyptic number.

10001901011 is a deficient number, since it is larger than the sum of its proper divisors (3880789).

10001901011 is an equidigital number, since it uses as much as digits as its factorization.

10001901011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880788.

The product of its (nonzero) digits is 9, while the sum is 14.

The spelling of 10001901011 in words is "ten billion, one million, nine hundred one thousand, eleven".