109298431961 has 2 divisors, whose sum is σ = 109298431962. Its totient is φ = 109298431960.

The previous prime is 109298431919. The next prime is 109298431973. The reversal of 109298431961 is 169134892901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109077612361 + 220819600 = 330269^2 + 14860^2 .

It is a cyclic number.

It is not a de Polignac number, because 109298431961 - 2¹⁸ = 109298169817 is a prime.

It is a super-2 number, since 2×109298431961² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (109298431981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54649215980 + 54649215981.

It is an arithmetic number, because the mean of its divisors is an integer number (54649215981).

Almost surely, 2^109298431961 is an apocalyptic number.

It is an amenable number.

109298431961 is a deficient number, since it is larger than the sum of its proper divisors (1).

109298431961 is an equidigital number, since it uses as much as digits as its factorization.

109298431961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 53.

The spelling of 109298431961 in words is "one hundred nine billion, two hundred ninety-eight million, four hundred thirty-one thousand, nine hundred sixty-one".