242201023931 has 2 divisors, whose sum is σ = 242201023932. Its totient is φ = 242201023930.

The previous prime is 242201023921. The next prime is 242201023957. The reversal of 242201023931 is 139320102242.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242201023931 is a prime.

It is a super-2 number, since 2×242201023931² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242201023894 and 242201023903.

It is not a weakly prime, because it can be changed into another prime (242201023921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121100511965 + 121100511966.

It is an arithmetic number, because the mean of its divisors is an integer number (121100511966).

Almost surely, 2^242201023931 is an apocalyptic number.

242201023931 is a deficient number, since it is larger than the sum of its proper divisors (1).

242201023931 is an equidigital number, since it uses as much as digits as its factorization.

242201023931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 242201023931 in words is "two hundred forty-two billion, two hundred one million, twenty-three thousand, nine hundred thirty-one".