42015115053971 has 2 divisors, whose sum is σ = 42015115053972. Its totient is φ = 42015115053970.

The previous prime is 42015115053911. The next prime is 42015115054001. The reversal of 42015115053971 is 17935051151024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42015115053971 - 2³⁴ = 41997935184787 is a prime.

It is not a weakly prime, because it can be changed into another prime (42015115053911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21007557526985 + 21007557526986.

It is an arithmetic number, because the mean of its divisors is an integer number (21007557526986).

Almost surely, 2^{42015115053971} is an apocalyptic number.

42015115053971 is a deficient number, since it is larger than the sum of its proper divisors (1).

42015115053971 is an equidigital number, since it uses as much as digits as its factorization.

42015115053971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189000, while the sum is 44.

The spelling of 42015115053971 in words is "forty-two trillion, fifteen billion, one hundred fifteen million, fifty-three thousand, nine hundred seventy-one".