39220541923 has 2 divisors, whose sum is σ = 39220541924. Its totient is φ = 39220541922.

The previous prime is 39220541879. The next prime is 39220541957. The reversal of 39220541923 is 32914502293.

It is a strong prime.

It is an emirp because it is prime and its reverse (32914502293) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39220541923 is a prime.

It is not a weakly prime, because it can be changed into another prime (39220541023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19610270961 + 19610270962.

It is an arithmetic number, because the mean of its divisors is an integer number (19610270962).

Almost surely, 2^39220541923 is an apocalyptic number.

39220541923 is a deficient number, since it is larger than the sum of its proper divisors (1).

39220541923 is an equidigital number, since it uses as much as digits as its factorization.

39220541923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 39220541923 in words is "thirty-nine billion, two hundred twenty million, five hundred forty-one thousand, nine hundred twenty-three".