42231220545 has 8 divisors (see below), whose sum is σ = 67569952896. Its totient is φ = 22523317616.

The previous prime is 42231220519. The next prime is 42231220573. The reversal of 42231220545 is 54502213224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42231220545 - 2¹⁷ = 42231089473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407707337 + ... + 1407707366.

It is an arithmetic number, because the mean of its divisors is an integer number (8446244112).

Almost surely, 2^42231220545 is an apocalyptic number.

It is an amenable number.

42231220545 is a deficient number, since it is larger than the sum of its proper divisors (25338732351).

42231220545 is a wasteful number, since it uses less digits than its factorization.

42231220545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815414711.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 42231220545 its reverse (54502213224), we get a palindrome (96733433769).

The spelling of 42231220545 in words is "forty-two billion, two hundred thirty-one million, two hundred twenty thousand, five hundred forty-five".