106231399 has 2 divisors, whose sum is σ = 106231400. Its totient is φ = 106231398.

The previous prime is 106231397. The next prime is 106231409. The reversal of 106231399 is 993132601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 106231399 - 2¹ = 106231397 is a prime.

It is a super-2 number, since 2×106231399² = 22570220266994402, which contains 22 as substring.

Together with 106231397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106231397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53115699 + 53115700.

It is an arithmetic number, because the mean of its divisors is an integer number (53115700).

Almost surely, 2^106231399 is an apocalyptic number.

106231399 is a deficient number, since it is larger than the sum of its proper divisors (1).

106231399 is an equidigital number, since it uses as much as digits as its factorization.

106231399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 106231399 is about 10306.8617435182. The cubic root of 106231399 is about 473.6064775501.

The spelling of 106231399 in words is "one hundred six million, two hundred thirty-one thousand, three hundred ninety-nine".