3101199961 has 2 divisors, whose sum is σ = 3101199962. Its totient is φ = 3101199960.

The previous prime is 3101199889. The next prime is 3101199967. The reversal of 3101199961 is 1699911013.

3101199961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2667102736 + 434097225 = 51644^2 + 20835^2 .

It is a cyclic number.

It is not a de Polignac number, because 3101199961 - 2⁷ = 3101199833 is a prime.

It is not a weakly prime, because it can be changed into another prime (3101199967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1550599980 + 1550599981.

It is an arithmetic number, because the mean of its divisors is an integer number (1550599981).

Almost surely, 2^3101199961 is an apocalyptic number.

It is an amenable number.

3101199961 is a deficient number, since it is larger than the sum of its proper divisors (1).

3101199961 is an equidigital number, since it uses as much as digits as its factorization.

3101199961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 40.

The square root of 3101199961 is about 55688.4185535916. The cubic root of 3101199961 is about 1458.2878473439.

The spelling of 3101199961 in words is "three billion, one hundred one million, one hundred ninety-nine thousand, nine hundred sixty-one".