20034523531 has 16 divisors (see below), whose sum is σ = 22651480800. Its totient is φ = 17552505600.

The previous prime is 20034523489. The next prime is 20034523541. The reversal of 20034523531 is 13532543002.

It is a cyclic number.

It is not a de Polignac number, because 20034523531 - 2²³ = 20026134923 is a prime.

It is a super-2 number, since 2×20034523531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20034523531.

It is not an unprimeable number, because it can be changed into a prime (20034523541) 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, 114535 + ... + 230623.

It is an arithmetic number, because the mean of its divisors is an integer number (1415717550).

Almost surely, 2^20034523531 is an apocalyptic number.

20034523531 is a deficient number, since it is larger than the sum of its proper divisors (2616957269).

20034523531 is a wasteful number, since it uses less digits than its factorization.

20034523531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116670.

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 20034523531 in words is "twenty billion, thirty-four million, five hundred twenty-three thousand, five hundred thirty-one".