42155023351 has 24 divisors (see below), whose sum is σ = 49983888240. Its totient is φ = 35440175232.

The previous prime is 42155023343. The next prime is 42155023399. The reversal of 42155023351 is 15332055124.

It is not a de Polignac number, because 42155023351 - 2³ = 42155023343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42155023331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 737385 + ... + 792493.

It is an arithmetic number, because the mean of its divisors is an integer number (2082662010).

Almost surely, 2^42155023351 is an apocalyptic number.

42155023351 is a deficient number, since it is larger than the sum of its proper divisors (7828864889).

42155023351 is a wasteful number, since it uses less digits than its factorization.

42155023351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55423 (or 55416 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 42155023351 its reverse (15332055124), we get a palindrome (57487078475).

The spelling of 42155023351 in words is "forty-two billion, one hundred fifty-five million, twenty-three thousand, three hundred fifty-one".