2421311197 has 2 divisors, whose sum is σ = 2421311198. Its totient is φ = 2421311196.

The previous prime is 2421311147. The next prime is 2421311213. The reversal of 2421311197 is 7911131242.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1491427161 + 929884036 = 38619^2 + 30494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2421311197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421311107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210655598 + 1210655599.

It is an arithmetic number, because the mean of its divisors is an integer number (1210655599).

Almost surely, 2^2421311197 is an apocalyptic number.

It is an amenable number.

2421311197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421311197 is an equidigital number, since it uses as much as digits as its factorization.

2421311197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 31.

The square root of 2421311197 is about 49206.8206349486. The cubic root of 2421311197 is about 1342.8171217087.

The spelling of 2421311197 in words is "two billion, four hundred twenty-one million, three hundred eleven thousand, one hundred ninety-seven".