101211120961 has 2 divisors, whose sum is σ = 101211120962. Its totient is φ = 101211120960.

The previous prime is 101211120953. The next prime is 101211120977. The reversal of 101211120961 is 169021112101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98882575936 + 2328545025 = 314456^2 + 48255^2 .

It is a cyclic number.

It is not a de Polignac number, because 101211120961 - 2³ = 101211120953 is a prime.

It is not a weakly prime, because it can be changed into another prime (101211120911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605560480 + 50605560481.

It is an arithmetic number, because the mean of its divisors is an integer number (50605560481).

Almost surely, 2^101211120961 is an apocalyptic number.

It is an amenable number.

101211120961 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211120961 is an equidigital number, since it uses as much as digits as its factorization.

101211120961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 25.

The spelling of 101211120961 in words is "one hundred one billion, two hundred eleven million, one hundred twenty thousand, nine hundred sixty-one".