1110109961 has 2 divisors, whose sum is σ = 1110109962. Its totient is φ = 1110109960.

The previous prime is 1110109943. The next prime is 1110109993. The reversal of 1110109961 is 1699010111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1081423225 + 28686736 = 32885^2 + 5356^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1110109961 is a prime.

It is a super-2 number, since 2×1110109961² = 2464688251022843042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1110105961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555054980 + 555054981.

It is an arithmetic number, because the mean of its divisors is an integer number (555054981).

Almost surely, 2^1110109961 is an apocalyptic number.

It is an amenable number.

1110109961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110109961 is an equidigital number, since it uses as much as digits as its factorization.

1110109961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 29.

The square root of 1110109961 is about 33318.3126973741. The cubic root of 1110109961 is about 1035.4329945561.

The spelling of 1110109961 in words is "one billion, one hundred ten million, one hundred nine thousand, nine hundred sixty-one".