2021311231283 has 2 divisors, whose sum is σ = 2021311231284. Its totient is φ = 2021311231282.

The previous prime is 2021311231231. The next prime is 2021311231319. The reversal of 2021311231283 is 3821321131202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021311231283 - 2²² = 2021307036979 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021311231783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010655615641 + 1010655615642.

It is an arithmetic number, because the mean of its divisors is an integer number (1010655615642).

Almost surely, 2^{2021311231283} is an apocalyptic number.

2021311231283 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021311231283 is an equidigital number, since it uses as much as digits as its factorization.

2021311231283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 2021311231283 its reverse (3821321131202), we get a palindrome (5842632362485).

The spelling of 2021311231283 in words is "two trillion, twenty-one billion, three hundred eleven million, two hundred thirty-one thousand, two hundred eighty-three".