20120332442 has 32 divisors (see below), whose sum is σ = 36276470784. Its totient is φ = 8187379200.

The previous prime is 20120332429. The next prime is 20120332447. The reversal of 20120332442 is 24423302102.

It is not an unprimeable number, because it can be changed into a prime (20120332447) 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, 414359 + ... + 460362.

It is an arithmetic number, because the mean of its divisors is an integer number (1133639712).

Almost surely, 2^20120332442 is an apocalyptic number.

20120332442 is a deficient number, since it is larger than the sum of its proper divisors (16156138342).

20120332442 is a wasteful number, since it uses less digits than its factorization.

20120332442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874814.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20120332442 its reverse (24423302102), we get a palindrome (44543634544).

The spelling of 20120332442 in words is "twenty billion, one hundred twenty million, three hundred thirty-two thousand, four hundred forty-two".