1311302423400 has 96 divisors (see below), whose sum is σ = 4072470044640. Its totient is φ = 349041288960.

The previous prime is 1311302423357. The next prime is 1311302423401. The reversal of 1311302423400 is 43242031131.

It is a happy number.

It is a super-3 number, since 3×1311302423400³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1311302423401) 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, 1669519 + ... + 2325918.

It is an arithmetic number, because the mean of its divisors is an integer number (42421562965).

Almost surely, 2^{1311302423400} is an apocalyptic number.

1311302423400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311302423400 is an abundant number, since it is smaller than the sum of its proper divisors (2761167621240).

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

1311302423400 is a wasteful number, since it uses less digits than its factorization.

1311302423400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996003 (or 3995994 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1311302423400 its reverse (43242031131), we get a palindrome (1354544454531).

The spelling of 1311302423400 in words is "one trillion, three hundred eleven billion, three hundred two million, four hundred twenty-three thousand, four hundred".