23420222142 has 32 divisors (see below), whose sum is σ = 49603687200. Its totient is φ = 7346347008.

The previous prime is 23420222083. The next prime is 23420222179. The reversal of 23420222142 is 24122202432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 802584 + ... + 831252.

It is an arithmetic number, because the mean of its divisors is an integer number (1550115225).

Almost surely, 2^23420222142 is an apocalyptic number.

23420222142 is an abundant number, since it is smaller than the sum of its proper divisors (26183465058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23420222142 is a wasteful number, since it uses less digits than its factorization.

23420222142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36700.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 23420222142 its reverse (24122202432), we get a palindrome (47542424574).

The spelling of 23420222142 in words is "twenty-three billion, four hundred twenty million, two hundred twenty-two thousand, one hundred forty-two".