20030231442 has 32 divisors (see below), whose sum is σ = 43207416000. Its totient is φ = 6153808320.

The previous prime is 20030231413. The next prime is 20030231443. The reversal of 20030231442 is 24413203002.

It is not an unprimeable number, because it can be changed into a prime (20030231443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142692 + ... + 245807.

It is an arithmetic number, because the mean of its divisors is an integer number (1350231750).

Almost surely, 2^20030231442 is an apocalyptic number.

20030231442 is an abundant number, since it is smaller than the sum of its proper divisors (23177184558).

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

20030231442 is a wasteful number, since it uses less digits than its factorization.

20030231442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389178.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20030231442 its reverse (24413203002), we get a palindrome (44443434444).

The spelling of 20030231442 in words is "twenty billion, thirty million, two hundred thirty-one thousand, four hundred forty-two".