12431331202 has 4 divisors (see below), whose sum is σ = 18646996806. Its totient is φ = 6215665600.

The previous prime is 12431331193. The next prime is 12431331239. The reversal of 12431331202 is 20213313421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9415014961 + 3016316241 = 97031^2 + 54921^2 .

It is a super-3 number, since 3×12431331202³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3107832799 + ... + 3107832802.

Almost surely, 2^12431331202 is an apocalyptic number.

12431331202 is a deficient number, since it is larger than the sum of its proper divisors (6215665604).

12431331202 is an equidigital number, since it uses as much as digits as its factorization.

12431331202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6215665603.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12431331202 its reverse (20213313421), we get a palindrome (32644644623).

The spelling of 12431331202 in words is "twelve billion, four hundred thirty-one million, three hundred thirty-one thousand, two hundred two".