1200133440251 has 2 divisors, whose sum is σ = 1200133440252. Its totient is φ = 1200133440250.

The previous prime is 1200133440139. The next prime is 1200133440323. The reversal of 1200133440251 is 1520443310021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200133440251 - 2³⁰ = 1199059698427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200133440251.

It is not a weakly prime, because it can be changed into another prime (1200133442251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600066720125 + 600066720126.

It is an arithmetic number, because the mean of its divisors is an integer number (600066720126).

Almost surely, 2^{1200133440251} is an apocalyptic number.

1200133440251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200133440251 is an equidigital number, since it uses as much as digits as its factorization.

1200133440251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1200133440251 its reverse (1520443310021), we get a palindrome (2720576750272).

The spelling of 1200133440251 in words is "one trillion, two hundred billion, one hundred thirty-three million, four hundred forty thousand, two hundred fifty-one".