1102561011 has 8 divisors (see below), whose sum is σ = 1633423760. Its totient is φ = 735040656.

The previous prime is 1102561007. The next prime is 1102561043. The reversal of 1102561011 is 1101652011.

It is a happy number.

1102561011 is a `hidden beast` number, since 1 + 102 + 561 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 1102561011 - 2² = 1102561007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102561081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20417770 + ... + 20417823.

It is an arithmetic number, because the mean of its divisors is an integer number (204177970).

Almost surely, 2^1102561011 is an apocalyptic number.

1102561011 is a deficient number, since it is larger than the sum of its proper divisors (530862749).

1102561011 is an equidigital number, since it uses as much as digits as its factorization.

1102561011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40835602 (or 40835596 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

The square root of 1102561011 is about 33204.8341510690. The cubic root of 1102561011 is about 1033.0806099155.

The spelling of 1102561011 in words is "one billion, one hundred two million, five hundred sixty-one thousand, eleven".