21330023030131 has 4 divisors (see below), whose sum is σ = 21331556805672. Its totient is φ = 21328489254592.

The previous prime is 21330023030087. The next prime is 21330023030143. The reversal of 21330023030131 is 13103032003312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21330023030131 - 2⁹ = 21330023029619 is a prime.

It is a super-2 number, since 2×21330023030131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21330023030161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766866910 + ... + 766894723.

It is an arithmetic number, because the mean of its divisors is an integer number (5332889201418).

Almost surely, 2^{21330023030131} is an apocalyptic number.

21330023030131 is a deficient number, since it is larger than the sum of its proper divisors (1533775541).

21330023030131 is a wasteful number, since it uses less digits than its factorization.

21330023030131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533775540.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 21330023030131 its reverse (13103032003312), we get a palindrome (34433055033443).

The spelling of 21330023030131 in words is "twenty-one trillion, three hundred thirty billion, twenty-three million, thirty thousand, one hundred thirty-one".