12015119957 has 2 divisors, whose sum is σ = 12015119958. Its totient is φ = 12015119956.

The previous prime is 12015119939. The next prime is 12015119989. The reversal of 12015119957 is 75991151021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6555978961 + 5459140996 = 80969^2 + 73886^2 .

It is a cyclic number.

It is not a de Polignac number, because 12015119957 - 2¹⁰ = 12015118933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12015110957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6007559978 + 6007559979.

It is an arithmetic number, because the mean of its divisors is an integer number (6007559979).

Almost surely, 2^12015119957 is an apocalyptic number.

It is an amenable number.

12015119957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12015119957 is an equidigital number, since it uses as much as digits as its factorization.

12015119957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 41.

The spelling of 12015119957 in words is "twelve billion, fifteen million, one hundred nineteen thousand, nine hundred fifty-seven".