110031205961 has 2 divisors, whose sum is σ = 110031205962. Its totient is φ = 110031205960.

The previous prime is 110031205939. The next prime is 110031205969. The reversal of 110031205961 is 169502130011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109382994361 + 648211600 = 330731^2 + 25460^2 .

It is a cyclic number.

It is not a de Polignac number, because 110031205961 - 2¹⁴ = 110031189577 is a prime.

It is not a weakly prime, because it can be changed into another prime (110031205969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55015602980 + 55015602981.

It is an arithmetic number, because the mean of its divisors is an integer number (55015602981).

Almost surely, 2^110031205961 is an apocalyptic number.

It is an amenable number.

110031205961 is a deficient number, since it is larger than the sum of its proper divisors (1).

110031205961 is an equidigital number, since it uses as much as digits as its factorization.

110031205961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 29.

Adding to 110031205961 its reverse (169502130011), we get a palindrome (279533335972).

The spelling of 110031205961 in words is "one hundred ten billion, thirty-one million, two hundred five thousand, nine hundred sixty-one".