23151313420 has 24 divisors (see below), whose sum is σ = 51176588400. Its totient is φ = 8773129152.

The previous prime is 23151313411. The next prime is 23151313483. The reversal of 23151313420 is 2431315132.

It is a happy number.

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, 30461875 + ... + 30462634.

It is an arithmetic number, because the mean of its divisors is an integer number (2132357850).

Almost surely, 2^23151313420 is an apocalyptic number.

23151313420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23151313420 is an abundant number, since it is smaller than the sum of its proper divisors (28025274980).

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

23151313420 is a wasteful number, since it uses less digits than its factorization.

23151313420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60924537 (or 60924535 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 23151313420 its reverse (2431315132), we get a palindrome (25582628552).

The spelling of 23151313420 in words is "twenty-three billion, one hundred fifty-one million, three hundred thirteen thousand, four hundred twenty".