42121013232 has 20 divisors (see below), whose sum is σ = 108812617640. Its totient is φ = 14040337728.

The previous prime is 42121013219. The next prime is 42121013243. The reversal of 42121013232 is 23231012124.

It is a junction number, because it is equal to n+sod(n) for n = 42121013199 and 42121013208.

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, 438760507 + ... + 438760602.

It is an arithmetic number, because the mean of its divisors is an integer number (5440630882).

Almost surely, 2^42121013232 is an apocalyptic number.

It is an amenable number.

42121013232 is an abundant number, since it is smaller than the sum of its proper divisors (66691604408).

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

42121013232 is a wasteful number, since it uses less digits than its factorization.

42121013232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877521120 (or 877521114 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 42121013232 its reverse (23231012124), we get a palindrome (65352025356).

The spelling of 42121013232 in words is "forty-two billion, one hundred twenty-one million, thirteen thousand, two hundred thirty-two".