42451304203135 has 4 divisors (see below), whose sum is σ = 50941565043768. Its totient is φ = 33961043362504.

The previous prime is 42451304203127. The next prime is 42451304203193. The reversal of 42451304203135 is 53130240315424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42451304203135 - 2³ = 42451304203127 is a prime.

It is a super-2 number, since 2×42451304203135² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42451304203094 and 42451304203103.

It is a congruent number.

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, 4245130420309 + ... + 4245130420318.

It is an arithmetic number, because the mean of its divisors is an integer number (12735391260942).

Almost surely, 2^{42451304203135} is an apocalyptic number.

42451304203135 is a deficient number, since it is larger than the sum of its proper divisors (8490260840633).

42451304203135 is an equidigital number, since it uses as much as digits as its factorization.

42451304203135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8490260840632.

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

Adding to 42451304203135 its reverse (53130240315424), we get a palindrome (95581544518559).

The spelling of 42451304203135 in words is "forty-two trillion, four hundred fifty-one billion, three hundred four million, two hundred three thousand, one hundred thirty-five".