231052221123 has 8 divisors (see below), whose sum is σ = 324283819200. Its totient is φ = 145927718568.

The previous prime is 231052221083. The next prime is 231052221139. The reversal of 231052221123 is 321122250132.

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

It is not a de Polignac number, because 231052221123 - 2¹² = 231052217027 is a prime.

It is a super-2 number, since 2×231052221123² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231052221093 and 231052221102.

It is not an unprimeable number, because it can be changed into a prime (231052221143) 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, 2026773813 + ... + 2026773926.

It is an arithmetic number, because the mean of its divisors is an integer number (40535477400).

Almost surely, 2^231052221123 is an apocalyptic number.

231052221123 is a deficient number, since it is larger than the sum of its proper divisors (93231598077).

231052221123 is a wasteful number, since it uses less digits than its factorization.

231052221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053547761.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 231052221123 its reverse (321122250132), we get a palindrome (552174471255).

The spelling of 231052221123 in words is "two hundred thirty-one billion, fifty-two million, two hundred twenty-one thousand, one hundred twenty-three".