31200213119 has 2 divisors, whose sum is σ = 31200213120. Its totient is φ = 31200213118.

The previous prime is 31200213103. The next prime is 31200213127. The reversal of 31200213119 is 91131200213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31200213119 - 2⁴ = 31200213103 is a prime.

It is a super-2 number, since 2×31200213119² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31200213094 and 31200213103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31200213719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15600106559 + 15600106560.

It is an arithmetic number, because the mean of its divisors is an integer number (15600106560).

Almost surely, 2^31200213119 is an apocalyptic number.

31200213119 is a deficient number, since it is larger than the sum of its proper divisors (1).

31200213119 is an equidigital number, since it uses as much as digits as its factorization.

31200213119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 31200213119 in words is "thirty-one billion, two hundred million, two hundred thirteen thousand, one hundred nineteen".