126491422331 has 2 divisors, whose sum is σ = 126491422332. Its totient is φ = 126491422330.

The previous prime is 126491422319. The next prime is 126491422381. The reversal of 126491422331 is 133224194621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126491422331 - 2¹⁰ = 126491421307 is a prime.

It is a super-2 number, since 2×126491422331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126491422381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63245711165 + 63245711166.

It is an arithmetic number, because the mean of its divisors is an integer number (63245711166).

Almost surely, 2^126491422331 is an apocalyptic number.

126491422331 is a deficient number, since it is larger than the sum of its proper divisors (1).

126491422331 is an equidigital number, since it uses as much as digits as its factorization.

126491422331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The spelling of 126491422331 in words is "one hundred twenty-six billion, four hundred ninety-one million, four hundred twenty-two thousand, three hundred thirty-one".