15011239381 has 2 divisors, whose sum is σ = 15011239382. Its totient is φ = 15011239380.

The previous prime is 15011239361. The next prime is 15011239423. The reversal of 15011239381 is 18393211051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14826958756 + 184280625 = 121766^2 + 13575^2 .

It is a cyclic number.

It is not a de Polignac number, because 15011239381 - 2¹³ = 15011231189 is a prime.

It is a super-2 number, since 2×15011239381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15011239301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7505619690 + 7505619691.

It is an arithmetic number, because the mean of its divisors is an integer number (7505619691).

Almost surely, 2^15011239381 is an apocalyptic number.

It is an amenable number.

15011239381 is a deficient number, since it is larger than the sum of its proper divisors (1).

15011239381 is an equidigital number, since it uses as much as digits as its factorization.

15011239381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 15011239381 in words is "fifteen billion, eleven million, two hundred thirty-nine thousand, three hundred eighty-one".