122340312 has 48 divisors (see below), whose sum is σ = 345749040. Its totient is φ = 39006528.

The previous prime is 122340311. The next prime is 122340341. The reversal of 122340312 is 213043221.

122340312 is a `hidden beast` number, since 12 + 2 + 340 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122340311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35283 + ... + 38594.

It is an arithmetic number, because the mean of its divisors is an integer number (7203105).

Almost surely, 2^122340312 is an apocalyptic number.

122340312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122340312 is an abundant number, since it is smaller than the sum of its proper divisors (223408728).

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

122340312 is a wasteful number, since it uses less digits than its factorization.

122340312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73912 (or 73905 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 122340312 is about 11060.7554895676. The cubic root of 122340312 is about 496.4282959463.

Adding to 122340312 its reverse (213043221), we get a palindrome (335383533).

The spelling of 122340312 in words is "one hundred twenty-two million, three hundred forty thousand, three hundred twelve".