1201112231251 has 2 divisors, whose sum is σ = 1201112231252. Its totient is φ = 1201112231250.

The previous prime is 1201112231213. The next prime is 1201112231281. The reversal of 1201112231251 is 1521322111021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201112231251 - 2²⁷ = 1200978013523 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201112231281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600556115625 + 600556115626.

It is an arithmetic number, because the mean of its divisors is an integer number (600556115626).

Almost surely, 2^{1201112231251} is an apocalyptic number.

1201112231251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201112231251 is an equidigital number, since it uses as much as digits as its factorization.

1201112231251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 1201112231251 its reverse (1521322111021), we get a palindrome (2722434342272).

The spelling of 1201112231251 in words is "one trillion, two hundred one billion, one hundred twelve million, two hundred thirty-one thousand, two hundred fifty-one".