312423011111420 has 96 divisors (see below), whose sum is σ = 718714152769536. Its totient is φ = 113135436518400.

The previous prime is 312423011111389. The next prime is 312423011111479. The reversal of 312423011111420 is 24111110324213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312423011111420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159122900 + ... + 161074340.

It is an arithmetic number, because the mean of its divisors is an integer number (7486605758016).

Almost surely, 2^{312423011111420} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312423011111420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359357076384768).

312423011111420 is an abundant number, since it is smaller than the sum of its proper divisors (406291141658116).

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

312423011111420 is a wasteful number, since it uses less digits than its factorization.

312423011111420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954491 (or 1954489 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 312423011111420 its reverse (24111110324213), we get a palindrome (336534121435633).

The spelling of 312423011111420 in words is "three hundred twelve trillion, four hundred twenty-three billion, eleven million, one hundred eleven thousand, four hundred twenty".