11141631621 has 16 divisors (see below), whose sum is σ = 16526209920. Its totient is φ = 7418714400.

The previous prime is 11141631617. The next prime is 11141631629. The reversal of 11141631621 is 12613614111.

11141631621 is a `hidden beast` number, since 1 + 1 + 1 + 4 + 1 + 6 + 31 + 621 = 666.

It is not a de Polignac number, because 11141631621 - 2² = 11141631617 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11141631629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228480 + ... + 272921.

It is an arithmetic number, because the mean of its divisors is an integer number (1032888120).

Almost surely, 2^11141631621 is an apocalyptic number.

It is an amenable number.

11141631621 is a deficient number, since it is larger than the sum of its proper divisors (5384578299).

11141631621 is an equidigital number, since it uses as much as digits as its factorization.

11141631621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502233 (or 502227 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The spelling of 11141631621 in words is "eleven billion, one hundred forty-one million, six hundred thirty-one thousand, six hundred twenty-one".