431121030 has 64 divisors (see below), whose sum is σ = 1071360000. Its totient is φ = 110914560.

The previous prime is 431121011. The next prime is 431121101. The reversal of 431121030 is 30121134.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 463606 + ... + 464534.

It is an arithmetic number, because the mean of its divisors is an integer number (16740000).

Almost surely, 2^431121030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431121030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535680000).

431121030 is an abundant number, since it is smaller than the sum of its proper divisors (640238970).

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

431121030 is a wasteful number, since it uses less digits than its factorization.

431121030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 431121030 is about 20763.4541924026. The cubic root of 431121030 is about 755.4395814481.

Adding to 431121030 its reverse (30121134), we get a palindrome (461242164).

The spelling of 431121030 in words is "four hundred thirty-one million, one hundred twenty-one thousand, thirty".