723323121400 has 96 divisors (see below), whose sum is σ = 1897873059600. Its totient is φ = 253956684800.

The previous prime is 723323121379. The next prime is 723323121401. The reversal of 723323121400 is 4121323327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (723323121401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5604877 + ... + 5732476.

Almost surely, 2^723323121400 is an apocalyptic number.

It is an amenable number.

723323121400 is an abundant number, since it is smaller than the sum of its proper divisors (1174549938200).

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

723323121400 is a wasteful number, since it uses less digits than its factorization.

723323121400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11337409 (or 11337400 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 723323121400 its reverse (4121323327), we get a palindrome (727444444727).

The spelling of 723323121400 in words is "seven hundred twenty-three billion, three hundred twenty-three million, one hundred twenty-one thousand, four hundred".