23401322251 has 6 divisors (see below), whose sum is σ = 23701297452. Its totient is φ = 23105096820.

The previous prime is 23401322249. The next prime is 23401322281. The reversal of 23401322251 is 15222310432.

It is not a de Polignac number, because 23401322251 - 2¹ = 23401322249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23401322221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1868565 + ... + 1881046.

It is an arithmetic number, because the mean of its divisors is an integer number (3950216242).

Almost surely, 2^23401322251 is an apocalyptic number.

23401322251 is a deficient number, since it is larger than the sum of its proper divisors (299975201).

23401322251 is an frugal number, since it uses more digits than its factorization.

23401322251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3749769 (or 3749690 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 23401322251 its reverse (15222310432), we get a palindrome (38623632683).

The spelling of 23401322251 in words is "twenty-three billion, four hundred one million, three hundred twenty-two thousand, two hundred fifty-one".