42123054415 has 16 divisors (see below), whose sum is σ = 54642950208. Its totient is φ = 30987968256.

The previous prime is 42123054403. The next prime is 42123054437. The reversal of 42123054415 is 51445032124.

It is a cyclic number.

It is not a de Polignac number, because 42123054415 - 2¹⁷ = 42122923343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1214934 + ... + 1249123.

It is an arithmetic number, because the mean of its divisors is an integer number (3415184388).

Almost surely, 2^42123054415 is an apocalyptic number.

42123054415 is a deficient number, since it is larger than the sum of its proper divisors (12519895793).

42123054415 is a wasteful number, since it uses less digits than its factorization.

42123054415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464338.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 42123054415 its reverse (51445032124), we get a palindrome (93568086539).

The spelling of 42123054415 in words is "forty-two billion, one hundred twenty-three million, fifty-four thousand, four hundred fifteen".