342123100 has 36 divisors (see below), whose sum is σ = 809901288. Its totient is φ = 124408000.

The previous prime is 342123071. The next prime is 342123107. The reversal of 342123100 is 1321243.

It is a happy number.

It is a super-2 number, since 2×342123100² = 234096431107220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342123107) 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, 154411 + ... + 156610.

It is an arithmetic number, because the mean of its divisors is an integer number (22497258).

Almost surely, 2^342123100 is an apocalyptic number.

It is an amenable number.

342123100 is an abundant number, since it is smaller than the sum of its proper divisors (467778188).

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

342123100 is a wasteful number, since it uses less digits than its factorization.

342123100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311046 (or 311039 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 342123100 is about 18496.5699522912. The cubic root of 342123100 is about 699.4029603091.

Adding to 342123100 its reverse (1321243), we get a palindrome (343444343).

The spelling of 342123100 in words is "three hundred forty-two million, one hundred twenty-three thousand, one hundred".