42123011032087 has 2 divisors, whose sum is σ = 42123011032088. Its totient is φ = 42123011032086.

The previous prime is 42123011031979. The next prime is 42123011032129. The reversal of 42123011032087 is 78023011032124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42123011032087 - 2¹⁵ = 42123010999319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42123011032387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21061505516043 + 21061505516044.

It is an arithmetic number, because the mean of its divisors is an integer number (21061505516044).

Almost surely, 2^{42123011032087} is an apocalyptic number.

42123011032087 is a deficient number, since it is larger than the sum of its proper divisors (1).

42123011032087 is an equidigital number, since it uses as much as digits as its factorization.

42123011032087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 42123011032087 in words is "forty-two trillion, one hundred twenty-three billion, eleven million, thirty-two thousand, eighty-seven".