421123131232 has 48 divisors (see below), whose sum is σ = 924058905840. Its totient is φ = 187745292288.

The previous prime is 421123131227. The next prime is 421123131263. The reversal of 421123131232 is 232131321124.

It is a junction number, because it is equal to n+sod(n) for n = 421123131197 and 421123131206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20361333 + ... + 20382004.

It is an arithmetic number, because the mean of its divisors is an integer number (19251227205).

Almost surely, 2^421123131232 is an apocalyptic number.

It is an amenable number.

421123131232 is an abundant number, since it is smaller than the sum of its proper divisors (502935774608).

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

421123131232 is a wasteful number, since it uses less digits than its factorization.

421123131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40743383 (or 40743375 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

Adding to 421123131232 its reverse (232131321124), we get a palindrome (653254452356).

The spelling of 421123131232 in words is "four hundred twenty-one billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred thirty-two".