22131321042123 has 24 divisors (see below), whose sum is σ = 32705000078400. Its totient is φ = 14414916050304.

The previous prime is 22131321042119. The next prime is 22131321042269. The reversal of 22131321042123 is 32124012313122.

22131321042123 is a `hidden beast` number, since 2 + 2 + 1 + 3 + 1 + 3 + 210 + 421 + 23 = 666.

It is not a de Polignac number, because 22131321042123 - 2² = 22131321042119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22131321042023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45734628 + ... + 46216001.

It is an arithmetic number, because the mean of its divisors is an integer number (1362708336600).

Almost surely, 2^{22131321042123} is an apocalyptic number.

22131321042123 is a deficient number, since it is larger than the sum of its proper divisors (10573679036277).

22131321042123 is a wasteful number, since it uses less digits than its factorization.

22131321042123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91951251 (or 91951248 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 22131321042123 its reverse (32124012313122), we get a palindrome (54255333355245).

The spelling of 22131321042123 in words is "twenty-two trillion, one hundred thirty-one billion, three hundred twenty-one million, forty-two thousand, one hundred twenty-three".