126761857031 has 2 divisors, whose sum is σ = 126761857032. Its totient is φ = 126761857030.

The previous prime is 126761857007. The next prime is 126761857049. The reversal of 126761857031 is 130758167621.

It is a strong prime.

It is an emirp because it is prime and its reverse (130758167621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126761857031 - 2³⁰ = 125688115207 is a prime.

It is a super-2 number, since 2×126761857031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126761850031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63380928515 + 63380928516.

It is an arithmetic number, because the mean of its divisors is an integer number (63380928516).

Almost surely, 2^126761857031 is an apocalyptic number.

126761857031 is a deficient number, since it is larger than the sum of its proper divisors (1).

126761857031 is an equidigital number, since it uses as much as digits as its factorization.

126761857031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 126761857031 in words is "one hundred twenty-six billion, seven hundred sixty-one million, eight hundred fifty-seven thousand, thirty-one".