23132201440 has 48 divisors (see below), whose sum is σ = 55180446048. Its totient is φ = 9163040256.

The previous prime is 23132201413. The next prime is 23132201441. The reversal of 23132201440 is 4410223132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23132201441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685347 + ... + 718306.

It is an arithmetic number, because the mean of its divisors is an integer number (1149592626).

Almost surely, 2^23132201440 is an apocalyptic number.

23132201440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23132201440 is an abundant number, since it is smaller than the sum of its proper divisors (32048244608).

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

23132201440 is a wasteful number, since it uses less digits than its factorization.

23132201440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403771 (or 1403763 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 23132201440 its reverse (4410223132), we get a palindrome (27542424572).

The spelling of 23132201440 in words is "twenty-three billion, one hundred thirty-two million, two hundred one thousand, four hundred forty".