1022001311 has 2 divisors, whose sum is σ = 1022001312. Its totient is φ = 1022001310.

The previous prime is 1022001293. The next prime is 1022001313. The reversal of 1022001311 is 1131002201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022001311 is a prime.

Together with 1022001313, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022001292 and 1022001301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022001313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511000655 + 511000656.

It is an arithmetic number, because the mean of its divisors is an integer number (511000656).

Almost surely, 2^1022001311 is an apocalyptic number.

1022001311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022001311 is an equidigital number, since it uses as much as digits as its factorization.

1022001311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1022001311 is about 31968.7552306936. The cubic root of 1022001311 is about 1007.2806340580.

Adding to 1022001311 its reverse (1131002201), we get a palindrome (2153003512).

The spelling of 1022001311 in words is "one billion, twenty-two million, one thousand, three hundred eleven".