23420311144 has 32 divisors (see below), whose sum is σ = 45489132000. Its totient is φ = 11290974912.

The previous prime is 23420311121. The next prime is 23420311217. The reversal of 23420311144 is 44111302432.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103147 + ... + 239749.

It is an arithmetic number, because the mean of its divisors is an integer number (1421535375).

Almost surely, 2^23420311144 is an apocalyptic number.

It is an amenable number.

23420311144 is a deficient number, since it is larger than the sum of its proper divisors (22068820856).

23420311144 is a wasteful number, since it uses less digits than its factorization.

23420311144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137377 (or 137373 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 23420311144 its reverse (44111302432), we get a palindrome (67531613576).

The spelling of 23420311144 in words is "twenty-three billion, four hundred twenty million, three hundred eleven thousand, one hundred forty-four".