2231430012 has 72 divisors (see below), whose sum is σ = 6729725520. Its totient is φ = 637549920.

The previous prime is 2231430011. The next prime is 2231430029. The reversal of 2231430012 is 2100341322.

2231430012 is a `hidden beast` number, since 2 + 231 + 430 + 0 + 1 + 2 = 666.

It is a super-3 number, since 3×2231430012³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231430011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205539 + ... + 216122.

It is an arithmetic number, because the mean of its divisors is an integer number (93468410).

Almost surely, 2^2231430012 is an apocalyptic number.

It is an amenable number.

2231430012 is an abundant number, since it is smaller than the sum of its proper divisors (4498295508).

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

2231430012 is a wasteful number, since it uses less digits than its factorization.

2231430012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421688 (or 421673 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2231430012 is about 47238.0144798657. The cubic root of 2231430012 is about 1306.7557606484.

Adding to 2231430012 its reverse (2100341322), we get a palindrome (4331771334).

It can be divided in two parts, 22314 and 30012, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 2231430012 in words is "two billion, two hundred thirty-one million, four hundred thirty thousand, twelve".