23402421400144 has 10 divisors (see below), whose sum is σ = 45342191462810. Its totient is φ = 11701210700064.

The previous prime is 23402421400069. The next prime is 23402421400327. The reversal of 23402421400144 is 44100412420432.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15042296833600 + 8360124566544 = 3878440^2 + 2891388^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 731325668739 + ... + 731325668770.

It is an arithmetic number, because the mean of its divisors is an integer number (4534219146281).

Almost surely, 2^{23402421400144} is an apocalyptic number.

It is an amenable number.

23402421400144 is a deficient number, since it is larger than the sum of its proper divisors (21939770062666).

23402421400144 is a wasteful number, since it uses less digits than its factorization.

23402421400144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462651337517 (or 1462651337511 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 23402421400144 its reverse (44100412420432), we get a palindrome (67502833820576).

The spelling of 23402421400144 in words is "twenty-three trillion, four hundred two billion, four hundred twenty-one million, four hundred thousand, one hundred forty-four".