20612042331 has 8 divisors (see below), whose sum is σ = 27485091840. Its totient is φ = 13740177192.

The previous prime is 20612042323. The next prime is 20612042359. The reversal of 20612042331 is 13324021602.

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

It is not a de Polignac number, because 20612042331 - 2³ = 20612042323 is a prime.

It is a super-2 number, since 2×20612042331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20612042831) 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, 254655 + ... + 325688.

It is an arithmetic number, because the mean of its divisors is an integer number (3435636480).

Almost surely, 2^20612042331 is an apocalyptic number.

20612042331 is a deficient number, since it is larger than the sum of its proper divisors (6873049509).

20612042331 is a wasteful number, since it uses less digits than its factorization.

20612042331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592185.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20612042331 its reverse (13324021602), we get a palindrome (33936063933).

The spelling of 20612042331 in words is "twenty billion, six hundred twelve million, forty-two thousand, three hundred thirty-one".