1101560421 has 32 divisors (see below), whose sum is σ = 1608423040. Its totient is φ = 670505472.

The previous prime is 1101560381. The next prime is 1101560429. The reversal of 1101560421 is 1240651011.

It is not a de Polignac number, because 1101560421 - 2¹⁰ = 1101559397 is a prime.

It is a super-2 number, since 2×1101560421² = 2426870722227394482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101560429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 638466 + ... + 640188.

It is an arithmetic number, because the mean of its divisors is an integer number (50263220).

Almost surely, 2^1101560421 is an apocalyptic number.

It is an amenable number.

1101560421 is a deficient number, since it is larger than the sum of its proper divisors (506862619).

1101560421 is an equidigital number, since it uses as much as digits as its factorization.

1101560421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862 (or 1836 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1101560421 is about 33189.7637984967. The cubic root of 1101560421 is about 1032.7680034864.

The spelling of 1101560421 in words is "one billion, one hundred one million, five hundred sixty thousand, four hundred twenty-one".