23431240236220 has 48 divisors (see below), whose sum is σ = 49252369803840. Its totient is φ = 9363589507584.

The previous prime is 23431240236197. The next prime is 23431240236227. The reversal of 23431240236220 is 2263204213432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431240236227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547475862 + ... + 547518658.

It is an arithmetic number, because the mean of its divisors is an integer number (1026091037580).

Almost surely, 2^{23431240236220} is an apocalyptic number.

23431240236220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23431240236220 is an abundant number, since it is smaller than the sum of its proper divisors (25821129567620).

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

23431240236220 is a wasteful number, since it uses less digits than its factorization.

23431240236220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68182 (or 68180 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 23431240236220 its reverse (2263204213432), we get a palindrome (25694444449652).

The spelling of 23431240236220 in words is "twenty-three trillion, four hundred thirty-one billion, two hundred forty million, two hundred thirty-six thousand, two hundred twenty".