20303032442 has 64 divisors (see below), whose sum is σ = 40349373696. Its totient is φ = 7417820160.

The previous prime is 20303032427. The next prime is 20303032471. The reversal of 20303032442 is 24423030302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 711188 + ... + 739184.

It is an arithmetic number, because the mean of its divisors is an integer number (630458964).

Almost surely, 2^20303032442 is an apocalyptic number.

20303032442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20303032442 is a deficient number, since it is larger than the sum of its proper divisors (20046341254).

20303032442 is a wasteful number, since it uses less digits than its factorization.

20303032442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28311.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20303032442 its reverse (24423030302), we get a palindrome (44726062744).

The spelling of 20303032442 in words is "twenty billion, three hundred three million, thirty-two thousand, four hundred forty-two".