12431551222102 has 4 divisors (see below), whose sum is σ = 18647326833156. Its totient is φ = 6215775611050.

The previous prime is 12431551222073. The next prime is 12431551222109. The reversal of 12431551222102 is 20122215513421.

12431551222102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431551222109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3107887805524 + ... + 3107887805527.

It is an arithmetic number, because the mean of its divisors is an integer number (4661831708289).

Almost surely, 2^{12431551222102} is an apocalyptic number.

12431551222102 is a deficient number, since it is larger than the sum of its proper divisors (6215775611054).

12431551222102 is an equidigital number, since it uses as much as digits as its factorization.

12431551222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6215775611053.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 12431551222102 its reverse (20122215513421), we get a palindrome (32553766735523).

The spelling of 12431551222102 in words is "twelve trillion, four hundred thirty-one billion, five hundred fifty-one million, two hundred twenty-two thousand, one hundred two".