212331231149 has 2 divisors, whose sum is σ = 212331231150. Its totient is φ = 212331231148.

The previous prime is 212331231113. The next prime is 212331231179. The reversal of 212331231149 is 941132133212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162052138249 + 50279092900 = 402557^2 + 224230^2 .

It is a cyclic number.

It is not a de Polignac number, because 212331231149 - 2²⁴ = 212314453933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212331231179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106165615574 + 106165615575.

It is an arithmetic number, because the mean of its divisors is an integer number (106165615575).

Almost surely, 2^212331231149 is an apocalyptic number.

It is an amenable number.

212331231149 is a deficient number, since it is larger than the sum of its proper divisors (1).

212331231149 is an equidigital number, since it uses as much as digits as its factorization.

212331231149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The spelling of 212331231149 in words is "two hundred twelve billion, three hundred thirty-one million, two hundred thirty-one thousand, one hundred forty-nine".