431278454203 has 2 divisors, whose sum is σ = 431278454204. Its totient is φ = 431278454202.

The previous prime is 431278454149. The next prime is 431278454221. The reversal of 431278454203 is 302454872134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431278454203 is a prime.

It is a super-2 number, since 2×431278454203² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 431278454203.

It is not a weakly prime, because it can be changed into another prime (431272454203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215639227101 + 215639227102.

It is an arithmetic number, because the mean of its divisors is an integer number (215639227102).

Almost surely, 2^431278454203 is an apocalyptic number.

431278454203 is a deficient number, since it is larger than the sum of its proper divisors (1).

431278454203 is an equidigital number, since it uses as much as digits as its factorization.

431278454203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 43.

It can be divided in two parts, 431278 and 454203, that added together give a square (885481 = 941²).

The spelling of 431278454203 in words is "four hundred thirty-one billion, two hundred seventy-eight million, four hundred fifty-four thousand, two hundred three".