12151443631 has 2 divisors, whose sum is σ = 12151443632. Its totient is φ = 12151443630.

The previous prime is 12151443599. The next prime is 12151443641. The reversal of 12151443631 is 13634415121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12151443631 - 2⁵ = 12151443599 is a prime.

It is a super-2 number, since 2×12151443631² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12151443593 and 12151443602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12151443641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6075721815 + 6075721816.

It is an arithmetic number, because the mean of its divisors is an integer number (6075721816).

Almost surely, 2^12151443631 is an apocalyptic number.

12151443631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12151443631 is an equidigital number, since it uses as much as digits as its factorization.

12151443631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

Adding to 12151443631 its reverse (13634415121), we get a palindrome (25785858752).

The spelling of 12151443631 in words is "twelve billion, one hundred fifty-one million, four hundred forty-three thousand, six hundred thirty-one".