12311111231430 has 64 divisors (see below), whose sum is σ = 32233705878528. Its totient is φ = 2984421231360.

The previous prime is 12311111231429. The next prime is 12311111231431. The reversal of 12311111231430 is 3413211111321.

It is an interprime number because it is at equal distance from previous prime (12311111231429) and next prime (12311111231431).

It is a self number, because there is not a number n which added to its sum of digits gives 12311111231430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311111231431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10659954 + ... + 11758266.

It is an arithmetic number, because the mean of its divisors is an integer number (503651654352).

Almost surely, 2^{12311111231430} is an apocalyptic number.

12311111231430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311111231430 is an abundant number, since it is smaller than the sum of its proper divisors (19922594647098).

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

12311111231430 is a wasteful number, since it uses less digits than its factorization.

12311111231430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132301.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 12311111231430 its reverse (3413211111321), we get a palindrome (15724322342751).

The spelling of 12311111231430 in words is "twelve trillion, three hundred eleven billion, one hundred eleven million, two hundred thirty-one thousand, four hundred thirty".