22031142377 has 2 divisors, whose sum is σ = 22031142378. Its totient is φ = 22031142376.

The previous prime is 22031142359. The next prime is 22031142391. The reversal of 22031142377 is 77324113022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20983260736 + 1047881641 = 144856^2 + 32371^2 .

It is a cyclic number.

It is not a de Polignac number, because 22031142377 - 2³⁰ = 20957400553 is a prime.

It is not a weakly prime, because it can be changed into another prime (22031142307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11015571188 + 11015571189.

It is an arithmetic number, because the mean of its divisors is an integer number (11015571189).

Almost surely, 2^22031142377 is an apocalyptic number.

It is an amenable number.

22031142377 is a deficient number, since it is larger than the sum of its proper divisors (1).

22031142377 is an equidigital number, since it uses as much as digits as its factorization.

22031142377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 32.

Adding to 22031142377 its reverse (77324113022), we get a palindrome (99355255399).

The spelling of 22031142377 in words is "twenty-two billion, thirty-one million, one hundred forty-two thousand, three hundred seventy-seven".