15200427731 has 2 divisors, whose sum is σ = 15200427732. Its totient is φ = 15200427730.

The previous prime is 15200427673. The next prime is 15200427733. The reversal of 15200427731 is 13772400251.

It is a strong prime.

It is an emirp because it is prime and its reverse (13772400251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15200427731 - 2¹⁸ = 15200165587 is a prime.

It is a super-2 number, since 2×15200427731² (a number of 21 digits) contains 22 as substring.

Together with 15200427733, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15200427733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7600213865 + 7600213866.

It is an arithmetic number, because the mean of its divisors is an integer number (7600213866).

Almost surely, 2^15200427731 is an apocalyptic number.

15200427731 is a deficient number, since it is larger than the sum of its proper divisors (1).

15200427731 is an equidigital number, since it uses as much as digits as its factorization.

15200427731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 32.

Adding to 15200427731 its reverse (13772400251), we get a palindrome (28972827982).

The spelling of 15200427731 in words is "fifteen billion, two hundred million, four hundred twenty-seven thousand, seven hundred thirty-one".