312000122011340 has 24 divisors (see below), whose sum is σ = 748800292827552. Its totient is φ = 106971470403840.

The previous prime is 312000122011267. The next prime is 312000122011379. The reversal of 312000122011340 is 43110221000213.

It is a super-2 number, since 2×312000122011340² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114286149901 + ... + 1114286150180.

It is an arithmetic number, because the mean of its divisors is an integer number (31200012201148).

Almost surely, 2^{312000122011340} is an apocalyptic number.

It is an amenable number.

312000122011340 is an abundant number, since it is smaller than the sum of its proper divisors (436800170816212).

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

312000122011340 is a wasteful number, since it uses less digits than its factorization.

312000122011340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228572300097 (or 2228572300095 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 312000122011340 its reverse (43110221000213), we get a palindrome (355110343011553).

The spelling of 312000122011340 in words is "three hundred twelve trillion, one hundred twenty-two million, eleven thousand, three hundred forty".