122013631 has 2 divisors, whose sum is σ = 122013632. Its totient is φ = 122013630.

The previous prime is 122013623. The next prime is 122013637. The reversal of 122013631 is 136310221.

It is a strong prime.

It is an emirp because it is prime and its reverse (136310221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122013631 - 2³ = 122013623 is a prime.

It is a super-2 number, since 2×122013631² = 29774652299608322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122013599 and 122013608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122013637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61006815 + 61006816.

It is an arithmetic number, because the mean of its divisors is an integer number (61006816).

Almost surely, 2^122013631 is an apocalyptic number.

122013631 is a deficient number, since it is larger than the sum of its proper divisors (1).

122013631 is an equidigital number, since it uses as much as digits as its factorization.

122013631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 122013631 is about 11045.9780463298. The cubic root of 122013631 is about 495.9860371004.

Adding to 122013631 its reverse (136310221), we get a palindrome (258323852).

The spelling of 122013631 in words is "one hundred twenty-two million, thirteen thousand, six hundred thirty-one".