21110330230231 has 8 divisors (see below), whose sum is σ = 23048068354704. Its totient is φ = 19175694971520.

The previous prime is 21110330230229. The next prime is 21110330230343. The reversal of 21110330230231 is 13203203301112.

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 21110330230231 - 2¹ = 21110330230229 is a prime.

It is a super-2 number, since 2×21110330230231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110330239231) 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, 775702210 + ... + 775729423.

It is an arithmetic number, because the mean of its divisors is an integer number (2881008544338).

Almost surely, 2^{21110330230231} is an apocalyptic number.

21110330230231 is a deficient number, since it is larger than the sum of its proper divisors (1937738124473).

21110330230231 is a wasteful number, since it uses less digits than its factorization.

21110330230231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551432881.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21110330230231 its reverse (13203203301112), we get a palindrome (34313533531343).

The spelling of 21110330230231 in words is "twenty-one trillion, one hundred ten billion, three hundred thirty million, two hundred thirty thousand, two hundred thirty-one".