15231122471 has 2 divisors, whose sum is σ = 15231122472. Its totient is φ = 15231122470.

The previous prime is 15231122441. The next prime is 15231122531. The reversal of 15231122471 is 17422113251.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15231122471 is a prime.

It is a super-3 number, since 3×15231122471³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15231122441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7615561235 + 7615561236.

It is an arithmetic number, because the mean of its divisors is an integer number (7615561236).

Almost surely, 2^15231122471 is an apocalyptic number.

15231122471 is a deficient number, since it is larger than the sum of its proper divisors (1).

15231122471 is an equidigital number, since it uses as much as digits as its factorization.

15231122471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 29.

The spelling of 15231122471 in words is "fifteen billion, two hundred thirty-one million, one hundred twenty-two thousand, four hundred seventy-one".