42321565234 has 8 divisors (see below), whose sum is σ = 68365605420. Its totient is φ = 19533030096.

The previous prime is 42321565213. The next prime is 42321565243. The reversal of 42321565234 is 43256512324.

It can be written as a sum of positive squares in 2 ways, for example, as 39858924609 + 2462640625 = 199647^2 + 49625^2 .

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

It is a super-2 number, since 2×42321565234² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42321565193 and 42321565202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813876229 + ... + 813876280.

Almost surely, 2^42321565234 is an apocalyptic number.

42321565234 is a deficient number, since it is larger than the sum of its proper divisors (26044040186).

42321565234 is a wasteful number, since it uses less digits than its factorization.

42321565234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627752524.

The product of its digits is 172800, while the sum is 37.

The spelling of 42321565234 in words is "forty-two billion, three hundred twenty-one million, five hundred sixty-five thousand, two hundred thirty-four".