221231120113123 has 8 divisors (see below), whose sum is σ = 221320092576960. Its totient is φ = 221142148889640.

The previous prime is 221231120113099. The next prime is 221231120113147. The reversal of 221231120113123 is 321311021132122.

It is an interprime number because it is at equal distance from previous prime (221231120113099) and next prime (221231120113147).

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 221231120113123 - 2⁴¹ = 219032096857571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221231120113183) 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, 555575668 + ... + 555973726.

It is an arithmetic number, because the mean of its divisors is an integer number (27665011572120).

Almost surely, 2^{221231120113123} is an apocalyptic number.

221231120113123 is a deficient number, since it is larger than the sum of its proper divisors (88972463837).

221231120113123 is a wasteful number, since it uses less digits than its factorization.

221231120113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620177.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 221231120113123 its reverse (321311021132122), we get a palindrome (542542141245245).

The spelling of 221231120113123 in words is "two hundred twenty-one trillion, two hundred thirty-one billion, one hundred twenty million, one hundred thirteen thousand, one hundred twenty-three".