31354445803 has 2 divisors, whose sum is σ = 31354445804. Its totient is φ = 31354445802.

The previous prime is 31354445797. The next prime is 31354445851. The reversal of 31354445803 is 30854445313.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (30854445313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31354445803 is a prime.

It is a super-2 number, since 2×31354445803² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31354445203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15677222901 + 15677222902.

It is an arithmetic number, because the mean of its divisors is an integer number (15677222902).

Almost surely, 2^31354445803 is an apocalyptic number.

31354445803 is a deficient number, since it is larger than the sum of its proper divisors (1).

31354445803 is an equidigital number, since it uses as much as digits as its factorization.

31354445803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 31354445803 in words is "thirty-one billion, three hundred fifty-four million, four hundred forty-five thousand, eight hundred three".