20683913131 has 8 divisors (see below), whose sum is σ = 23652684800. Its totient is φ = 17718623208.

The previous prime is 20683913111. The next prime is 20683913137. The reversal of 20683913131 is 13131938602.

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

It is a cyclic number.

It is not a de Polignac number, because 20683913131 - 2¹⁵ = 20683880363 is a prime.

It is a super-2 number, since 2×20683913131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20683913137) 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, 857691 + ... + 881476.

It is an arithmetic number, because the mean of its divisors is an integer number (2956585600).

Almost surely, 2^20683913131 is an apocalyptic number.

20683913131 is a deficient number, since it is larger than the sum of its proper divisors (2968771669).

20683913131 is a wasteful number, since it uses less digits than its factorization.

20683913131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740873.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 20683913131 in words is "twenty billion, six hundred eighty-three million, nine hundred thirteen thousand, one hundred thirty-one".