345420342120 has 128 divisors (see below), whose sum is σ = 1225136275200. Its totient is φ = 76230690816.

The previous prime is 345420342097. The next prime is 345420342121. The reversal of 345420342120 is 21243024543.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (345420342121) 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, 7065549 + ... + 7114268.

It is an arithmetic number, because the mean of its divisors is an integer number (9571377150).

Almost surely, 2^345420342120 is an apocalyptic number.

345420342120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345420342120 is an abundant number, since it is smaller than the sum of its proper divisors (879715933080).

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

345420342120 is a wasteful number, since it uses less digits than its factorization.

345420342120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14179867 (or 14179863 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 345420342120 its reverse (21243024543), we get a palindrome (366663366663).

The spelling of 345420342120 in words is "three hundred forty-five billion, four hundred twenty million, three hundred forty-two thousand, one hundred twenty".