31430220119 has 2 divisors, whose sum is σ = 31430220120. Its totient is φ = 31430220118.

The previous prime is 31430220047. The next prime is 31430220167. The reversal of 31430220119 is 91102203413.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31430220119 is a prime.

It is a super-2 number, since 2×31430220119² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31430220319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15715110059 + 15715110060.

It is an arithmetic number, because the mean of its divisors is an integer number (15715110060).

Almost surely, 2^31430220119 is an apocalyptic number.

31430220119 is a deficient number, since it is larger than the sum of its proper divisors (1).

31430220119 is an equidigital number, since it uses as much as digits as its factorization.

31430220119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 31430220119 in words is "thirty-one billion, four hundred thirty million, two hundred twenty thousand, one hundred nineteen".