11002401561 has 8 divisors (see below), whose sum is σ = 14672008224. Its totient is φ = 7333864640.

The previous prime is 11002401559. The next prime is 11002401623. The reversal of 11002401561 is 16510420011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11002401561 - 2¹ = 11002401559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11002401061) 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, 243120 + ... + 284801.

It is an arithmetic number, because the mean of its divisors is an integer number (1834001028).

Almost surely, 2^11002401561 is an apocalyptic number.

It is an amenable number.

11002401561 is a deficient number, since it is larger than the sum of its proper divisors (3669606663).

11002401561 is an equidigital number, since it uses as much as digits as its factorization.

11002401561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534871.

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

Adding to 11002401561 its reverse (16510420011), we get a palindrome (27512821572).

The spelling of 11002401561 in words is "eleven billion, two million, four hundred one thousand, five hundred sixty-one".