23345400501 has 32 divisors (see below), whose sum is σ = 37072396800. Its totient is φ = 14648071104.

The previous prime is 23345400497. The next prime is 23345400523. The reversal of 23345400501 is 10500454332.

It is not a de Polignac number, because 23345400501 - 2² = 23345400497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23345400101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276781 + ... + 351138.

It is an arithmetic number, because the mean of its divisors is an integer number (1158512400).

Almost surely, 2^23345400501 is an apocalyptic number.

It is an amenable number.

23345400501 is a deficient number, since it is larger than the sum of its proper divisors (13726996299).

23345400501 is an frugal number, since it uses more digits than its factorization.

23345400501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627957 (or 627939 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 23345400501 its reverse (10500454332), we get a palindrome (33845854833).

The spelling of 23345400501 in words is "twenty-three billion, three hundred forty-five million, four hundred thousand, five hundred one".