213131123119 has 2 divisors, whose sum is σ = 213131123120. Its totient is φ = 213131123118.

The previous prime is 213131123083. The next prime is 213131123143. The reversal of 213131123119 is 911321131312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213131123119 - 2¹³ = 213131114927 is a prime.

It is a super-2 number, since 2×213131123119² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213131123719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106565561559 + 106565561560.

It is an arithmetic number, because the mean of its divisors is an integer number (106565561560).

Almost surely, 2^213131123119 is an apocalyptic number.

213131123119 is a deficient number, since it is larger than the sum of its proper divisors (1).

213131123119 is an equidigital number, since it uses as much as digits as its factorization.

213131123119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 28.

The spelling of 213131123119 in words is "two hundred thirteen billion, one hundred thirty-one million, one hundred twenty-three thousand, one hundred nineteen".