231311004203400 has 96 divisors (see below), whose sum is σ = 782251759692000. Its totient is φ = 56075394956800.

The previous prime is 231311004203387. The next prime is 231311004203423. The reversal of 231311004203400 is 4302400113132.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17523554325 + ... + 17523567524.

It is an arithmetic number, because the mean of its divisors is an integer number (8148455830125).

Almost surely, 2^{231311004203400} is an apocalyptic number.

231311004203400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231311004203400 is an abundant number, since it is smaller than the sum of its proper divisors (550940755488600).

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

231311004203400 is a wasteful number, since it uses less digits than its factorization.

231311004203400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35047121879 (or 35047121870 counting only the distinct ones).

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

Adding to 231311004203400 its reverse (4302400113132), we get a palindrome (235613404316532).

The spelling of 231311004203400 in words is "two hundred thirty-one trillion, three hundred eleven billion, four million, two hundred three thousand, four hundred".