1203131213311 has 2 divisors, whose sum is σ = 1203131213312. Its totient is φ = 1203131213310.

The previous prime is 1203131213267. The next prime is 1203131213353. The reversal of 1203131213311 is 1133121313021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1203131213311 - 2⁷ = 1203131213183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203131213111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601565606655 + 601565606656.

It is an arithmetic number, because the mean of its divisors is an integer number (601565606656).

Almost surely, 2^{1203131213311} is an apocalyptic number.

1203131213311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203131213311 is an equidigital number, since it uses as much as digits as its factorization.

1203131213311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1203131213311 its reverse (1133121313021), we get a palindrome (2336252526332).

The spelling of 1203131213311 in words is "one trillion, two hundred three billion, one hundred thirty-one million, two hundred thirteen thousand, three hundred eleven".