12140031402 has 12 divisors (see below), whose sum is σ = 26303401410. Its totient is φ = 4046677128.

The previous prime is 12140031401. The next prime is 12140031443. The reversal of 12140031402 is 20413004121.

12140031402 is a `hidden beast` number, since 121 + 400 + 3 + 140 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8288463681 + 3851567721 = 91041^2 + 62061^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 674446189 = 12140031402 / (1 + 2 + 1 + 4 + 0 + 0 + 3 + 1 + 4 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (12140031401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 337223077 + ... + 337223112.

Almost surely, 2^12140031402 is an apocalyptic number.

12140031402 is an abundant number, since it is smaller than the sum of its proper divisors (14163370008).

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

12140031402 is a wasteful number, since it uses less digits than its factorization.

12140031402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674446197 (or 674446194 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12140031402 its reverse (20413004121), we get a palindrome (32553035523).

The spelling of 12140031402 in words is "twelve billion, one hundred forty million, thirty-one thousand, four hundred two".