101121311 has 2 divisors, whose sum is σ = 101121312. Its totient is φ = 101121310.

The previous prime is 101121281. The next prime is 101121323. The reversal of 101121311 is 113121101.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (113121101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101121311 - 2⁶ = 101121247 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 101121292 and 101121301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101121331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560655 + 50560656.

It is an arithmetic number, because the mean of its divisors is an integer number (50560656).

Almost surely, 2^101121311 is an apocalyptic number.

101121311 is a deficient number, since it is larger than the sum of its proper divisors (1).

101121311 is an equidigital number, since it uses as much as digits as its factorization.

101121311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 101121311 is about 10055.9092577449. The cubic root of 101121311 is about 465.8873271651.

Adding to 101121311 its reverse (113121101), we get a palindrome (214242412).

It can be divided in two parts, 1011 and 21311, that added together give a palindrome (22322).

The spelling of 101121311 in words is "one hundred one million, one hundred twenty-one thousand, three hundred eleven".