320251132403 has 2 divisors, whose sum is σ = 320251132404. Its totient is φ = 320251132402.

The previous prime is 320251132387. The next prime is 320251132429. The reversal of 320251132403 is 304231152023.

It is a happy number.

It is an a-pointer prime, because the next prime (320251132429) can be obtained adding 320251132403 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320251132403 - 2⁴ = 320251132387 is a prime.

It is not a weakly prime, because it can be changed into another prime (320251132433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160125566201 + 160125566202.

It is an arithmetic number, because the mean of its divisors is an integer number (160125566202).

Almost surely, 2^320251132403 is an apocalyptic number.

320251132403 is a deficient number, since it is larger than the sum of its proper divisors (1).

320251132403 is an equidigital number, since it uses as much as digits as its factorization.

320251132403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 320251132403 its reverse (304231152023), we get a palindrome (624482284426).

The spelling of 320251132403 in words is "three hundred twenty billion, two hundred fifty-one million, one hundred thirty-two thousand, four hundred three".