1231434330 has 64 divisors (see below), whose sum is σ = 3441408768. Its totient is φ = 276157440.

The previous prime is 1231434313. The next prime is 1231434331. The reversal of 1231434330 is 334341321.

It is a self number, because there is not a number n which added to its sum of digits gives 1231434330.

It is not an unprimeable number, because it can be changed into a prime (1231434331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44191 + ... + 66450.

It is an arithmetic number, because the mean of its divisors is an integer number (53772012).

Almost surely, 2^1231434330 is an apocalyptic number.

1231434330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231434330 is an abundant number, since it is smaller than the sum of its proper divisors (2209974438).

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

1231434330 is a wasteful number, since it uses less digits than its factorization.

1231434330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110711.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 1231434330 is about 35091.7986144911. The cubic root of 1231434330 is about 1071.8575849692.

Adding to 1231434330 its reverse (334341321), we get a palindrome (1565775651).

The spelling of 1231434330 in words is "one billion, two hundred thirty-one million, four hundred thirty-four thousand, three hundred thirty".