12010020149 has 2 divisors, whose sum is σ = 12010020150. Its totient is φ = 12010020148.

The previous prime is 12010020131. The next prime is 12010020157. The reversal of 12010020149 is 94102001021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11452210225 + 557809924 = 107015^2 + 23618^2 .

It is a cyclic number.

It is not a de Polignac number, because 12010020149 - 2²⁸ = 11741584693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12010020149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12010020119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005010074 + 6005010075.

It is an arithmetic number, because the mean of its divisors is an integer number (6005010075).

Almost surely, 2^12010020149 is an apocalyptic number.

It is an amenable number.

12010020149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12010020149 is an equidigital number, since it uses as much as digits as its factorization.

12010020149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 12010020149 in words is "twelve billion, ten million, twenty thousand, one hundred forty-nine".