1254211419961 has 2 divisors, whose sum is σ = 1254211419962. Its totient is φ = 1254211419960.

The previous prime is 1254211419913. The next prime is 1254211420003. The reversal of 1254211419961 is 1699141124521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1252651169961 + 1560250000 = 1119219^2 + 39500^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254211419961 - 2⁷ = 1254211419833 is a prime.

It is not a weakly prime, because it can be changed into another prime (1254211419161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627105709980 + 627105709981.

It is an arithmetic number, because the mean of its divisors is an integer number (627105709981).

Almost surely, 2^{1254211419961} is an apocalyptic number.

It is an amenable number.

1254211419961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254211419961 is an equidigital number, since it uses as much as digits as its factorization.

1254211419961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 46.

The spelling of 1254211419961 in words is "one trillion, two hundred fifty-four billion, two hundred eleven million, four hundred nineteen thousand, nine hundred sixty-one".