20270931833 has 2 divisors, whose sum is σ = 20270931834. Its totient is φ = 20270931832.

The previous prime is 20270931823. The next prime is 20270931847. The reversal of 20270931833 is 33813907202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17034687289 + 3236244544 = 130517^2 + 56888^2 .

It is a cyclic number.

It is not a de Polignac number, because 20270931833 - 2²⁸ = 20002496377 is a prime.

It is not a weakly prime, because it can be changed into another prime (20270931823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10135465916 + 10135465917.

It is an arithmetic number, because the mean of its divisors is an integer number (10135465917).

Almost surely, 2^20270931833 is an apocalyptic number.

It is an amenable number.

20270931833 is a deficient number, since it is larger than the sum of its proper divisors (1).

20270931833 is an equidigital number, since it uses as much as digits as its factorization.

20270931833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 20270931833 in words is "twenty billion, two hundred seventy million, nine hundred thirty-one thousand, eight hundred thirty-three".