1201113020311 has 2 divisors, whose sum is σ = 1201113020312. Its totient is φ = 1201113020310.

The previous prime is 1201113020281. The next prime is 1201113020369. The reversal of 1201113020311 is 1130203111021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201113020311 - 2¹³ = 1201113012119 is a prime.

It is a super-2 number, since 2×1201113020311² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201113050311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600556510155 + 600556510156.

It is an arithmetic number, because the mean of its divisors is an integer number (600556510156).

Almost surely, 2^{1201113020311} is an apocalyptic number.

1201113020311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201113020311 is an equidigital number, since it uses as much as digits as its factorization.

1201113020311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1201113020311 its reverse (1130203111021), we get a palindrome (2331316131332).

The spelling of 1201113020311 in words is "one trillion, two hundred one billion, one hundred thirteen million, twenty thousand, three hundred eleven".