321134142 has 48 divisors (see below), whose sum is σ = 779628672. Its totient is φ = 87761520.

The previous prime is 321134141. The next prime is 321134159. The reversal of 321134142 is 241431123.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321134141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16984 + ... + 30507.

It is an arithmetic number, because the mean of its divisors is an integer number (16242264).

Almost surely, 2^321134142 is an apocalyptic number.

321134142 is an abundant number, since it is smaller than the sum of its proper divisors (458494530).

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

321134142 is a wasteful number, since it uses less digits than its factorization.

321134142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47533 (or 47526 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 321134142 is about 17920.2160143230. The cubic root of 321134142 is about 684.7974907082.

Adding to 321134142 its reverse (241431123), we get a palindrome (562565265).

The spelling of 321134142 in words is "three hundred twenty-one million, one hundred thirty-four thousand, one hundred forty-two".