312142200402340 has 192 divisors, whose sum is σ = 871125787123200. Its totient is φ = 90953519063040.

The previous prime is 312142200402283. The next prime is 312142200402349. The reversal of 312142200402340 is 43204002241213.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 312142200402299 and 312142200402308.

It is not an unprimeable number, because it can be changed into a prime (312142200402349) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36108999 + ... + 43910638.

It is an arithmetic number, because the mean of its divisors is an integer number (4537113474600).

Almost surely, 2^{312142200402340} is an apocalyptic number.

It is an amenable number.

312142200402340 is an abundant number, since it is smaller than the sum of its proper divisors (558983586720860).

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

312142200402340 is a wasteful number, since it uses less digits than its factorization.

312142200402340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80019830 (or 80019828 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 312142200402340 its reverse (43204002241213), we get a palindrome (355346202643553).

The spelling of 312142200402340 in words is "three hundred twelve trillion, one hundred forty-two billion, two hundred million, four hundred two thousand, three hundred forty".