20910292001 has 4 divisors (see below), whose sum is σ = 20925240000. Its totient is φ = 20895344004.

The previous prime is 20910291973. The next prime is 20910292027. The reversal of 20910292001 is 10029201902.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20910292001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20910292031) 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, 7471901 + ... + 7474698.

It is an arithmetic number, because the mean of its divisors is an integer number (5231310000).

Almost surely, 2^20910292001 is an apocalyptic number.

It is an amenable number.

20910292001 is a deficient number, since it is larger than the sum of its proper divisors (14947999).

20910292001 is a wasteful number, since it uses less digits than its factorization.

20910292001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14947998.

The product of its (nonzero) digits is 648, while the sum is 26.

Adding to 20910292001 its reverse (10029201902), we get a palindrome (30939493903).

It can be divided in two parts, 209102 and 92001, that added together give a palindrome (301103).

The spelling of 20910292001 in words is "twenty billion, nine hundred ten million, two hundred ninety-two thousand, one".