321010142 has 4 divisors (see below), whose sum is σ = 481515216. Its totient is φ = 160505070.

The previous prime is 321010049. The next prime is 321010163. The reversal of 321010142 is 241010123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241010123 = 23 ⋅10478701.

It is a super-2 number, since 2×321010142² = 206095022533720328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80252534 + ... + 80252537.

It is an arithmetic number, because the mean of its divisors is an integer number (120378804).

Almost surely, 2^321010142 is an apocalyptic number.

321010142 is a deficient number, since it is larger than the sum of its proper divisors (160505074).

321010142 is a wasteful number, since it uses less digits than its factorization.

321010142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160505073.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 321010142 is about 17916.7559005530. The cubic root of 321010142 is about 684.7093387394.

Adding to 321010142 its reverse (241010123), we get a palindrome (562020265).

The spelling of 321010142 in words is "three hundred twenty-one million, ten thousand, one hundred forty-two".