20401530711 has 16 divisors (see below), whose sum is σ = 28151388000. Its totient is φ = 13126725248.

The previous prime is 20401530707. The next prime is 20401530739. The reversal of 20401530711 is 11703510402.

It is a cyclic number.

It is not a de Polignac number, because 20401530711 - 2² = 20401530707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20401530791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175765 + ... + 267761.

It is an arithmetic number, because the mean of its divisors is an integer number (1759461750).

Almost surely, 2^20401530711 is an apocalyptic number.

20401530711 is a deficient number, since it is larger than the sum of its proper divisors (7749857289).

20401530711 is a wasteful number, since it uses less digits than its factorization.

20401530711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94578.

The product of its (nonzero) digits is 840, while the sum is 24.

The spelling of 20401530711 in words is "twenty billion, four hundred one million, five hundred thirty thousand, seven hundred eleven".