21183131608053 has 8 divisors (see below), whose sum is σ = 28244270802048. Its totient is φ = 14122040076384.

The previous prime is 21183131608031. The next prime is 21183131608061. The reversal of 21183131608053 is 35080613138112.

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

It is not a de Polignac number, because 21183131608053 - 2⁵ = 21183131608021 is a prime.

It is a super-2 number, since 2×21183131608053² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21183131607996 and 21183131608014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21183131608073) 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, 10865325 + ... + 12665762.

It is an arithmetic number, because the mean of its divisors is an integer number (3530533850256).

Almost surely, 2^{21183131608053} is an apocalyptic number.

It is an amenable number.

21183131608053 is a deficient number, since it is larger than the sum of its proper divisors (7061139193995).

21183131608053 is a wasteful number, since it uses less digits than its factorization.

21183131608053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23831163.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 21183131608053 in words is "twenty-one trillion, one hundred eighty-three billion, one hundred thirty-one million, six hundred eight thousand, fifty-three".