11202120311 has 2 divisors, whose sum is σ = 11202120312. Its totient is φ = 11202120310.

The previous prime is 11202120299. The next prime is 11202120317. The reversal of 11202120311 is 11302120211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11202120311 - 2²² = 11197926007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11202120317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601060155 + 5601060156.

It is an arithmetic number, because the mean of its divisors is an integer number (5601060156).

Almost surely, 2^11202120311 is an apocalyptic number.

11202120311 is a deficient number, since it is larger than the sum of its proper divisors (1).

11202120311 is an equidigital number, since it uses as much as digits as its factorization.

11202120311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11202120311 its reverse (11302120211), we get a palindrome (22504240522).

The spelling of 11202120311 in words is "eleven billion, two hundred two million, one hundred twenty thousand, three hundred eleven".