20342243132 has 12 divisors (see below), whose sum is σ = 35747876640. Its totient is φ = 10128564096.

The previous prime is 20342243099. The next prime is 20342243149. The reversal of 20342243132 is 23134224302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10638293 + ... + 10640204.

It is an arithmetic number, because the mean of its divisors is an integer number (2978989720).

Almost surely, 2^20342243132 is an apocalyptic number.

It is an amenable number.

20342243132 is a deficient number, since it is larger than the sum of its proper divisors (15405633508).

20342243132 is a wasteful number, since it uses less digits than its factorization.

20342243132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21278740 (or 21278738 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20342243132 its reverse (23134224302), we get a palindrome (43476467434).

The spelling of 20342243132 in words is "twenty billion, three hundred forty-two million, two hundred forty-three thousand, one hundred thirty-two".