142023321 has 64 divisors (see below), whose sum is σ = 253808640. Its totient is φ = 77425920.

The previous prime is 142023319. The next prime is 142023337. The reversal of 142023321 is 123320241.

142023321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142023321 - 2¹ = 142023319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142023294 and 142023303.

It is not an unprimeable number, because it can be changed into a prime (142023521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 115516 + ... + 116738.

It is an arithmetic number, because the mean of its divisors is an integer number (3965760).

Almost surely, 2^142023321 is an apocalyptic number.

142023321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142023321 is a deficient number, since it is larger than the sum of its proper divisors (111785319).

142023321 is a wasteful number, since it uses less digits than its factorization.

142023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283 (or 1277 counting only the distinct ones).

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

The square root of 142023321 is about 11917.3537750627. The cubic root of 142023321 is about 521.7389036439.

Adding to 142023321 its reverse (123320241), we get a palindrome (265343562).

The spelling of 142023321 in words is "one hundred forty-two million, twenty-three thousand, three hundred twenty-one".