11621323451 has 8 divisors (see below), whose sum is σ = 11942837904. Its totient is φ = 11300199840.

The previous prime is 11621323411. The next prime is 11621323453. The reversal of 11621323451 is 15432312611.

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 11621323451 - 2¹⁴ = 11621307067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11621323453) 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, 36905 + ... + 156858.

It is an arithmetic number, because the mean of its divisors is an integer number (1492854738).

Almost surely, 2^11621323451 is an apocalyptic number.

11621323451 is a deficient number, since it is larger than the sum of its proper divisors (321514453).

11621323451 is a wasteful number, since it uses less digits than its factorization.

11621323451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195421.

The product of its digits is 4320, while the sum is 29.

The spelling of 11621323451 in words is "eleven billion, six hundred twenty-one million, three hundred twenty-three thousand, four hundred fifty-one".