31421442259 has 2 divisors, whose sum is σ = 31421442260. Its totient is φ = 31421442258.

The previous prime is 31421442211. The next prime is 31421442263. The reversal of 31421442259 is 95224412413.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31421442259 is a prime.

It is a super-3 number, since 3×31421442259³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (31421442209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15710721129 + 15710721130.

It is an arithmetic number, because the mean of its divisors is an integer number (15710721130).

Almost surely, 2^31421442259 is an apocalyptic number.

31421442259 is a deficient number, since it is larger than the sum of its proper divisors (1).

31421442259 is an equidigital number, since it uses as much as digits as its factorization.

31421442259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The spelling of 31421442259 in words is "thirty-one billion, four hundred twenty-one million, four hundred forty-two thousand, two hundred fifty-nine".