11623221401 has 24 divisors (see below), whose sum is σ = 13085667840. Its totient is φ = 10311713280.

The previous prime is 11623221347. The next prime is 11623221413. The reversal of 11623221401 is 10412232611.

It is a de Polignac number, because none of the positive numbers 2^k-11623221401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11623221601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2084345 + ... + 2089913.

It is an arithmetic number, because the mean of its divisors is an integer number (545236160).

Almost surely, 2^11623221401 is an apocalyptic number.

11623221401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11623221401 is a deficient number, since it is larger than the sum of its proper divisors (1462446439).

11623221401 is a wasteful number, since it uses less digits than its factorization.

11623221401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005 (or 5994 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 11623221401 in words is "eleven billion, six hundred twenty-three million, two hundred twenty-one thousand, four hundred one".