42203203451 has 2 divisors, whose sum is σ = 42203203452. Its totient is φ = 42203203450.

The previous prime is 42203203397. The next prime is 42203203457. The reversal of 42203203451 is 15430230224.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42203203451 is a prime.

It is a super-4 number, since 4×42203203451⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 42203203451.

It is not a weakly prime, because it can be changed into another prime (42203203457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21101601725 + 21101601726.

It is an arithmetic number, because the mean of its divisors is an integer number (21101601726).

Almost surely, 2^42203203451 is an apocalyptic number.

42203203451 is a deficient number, since it is larger than the sum of its proper divisors (1).

42203203451 is an equidigital number, since it uses as much as digits as its factorization.

42203203451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 42203203451 its reverse (15430230224), we get a palindrome (57633433675).

The spelling of 42203203451 in words is "forty-two billion, two hundred three million, two hundred three thousand, four hundred fifty-one".