1021141311 has 4 divisors (see below), whose sum is σ = 1361521752. Its totient is φ = 680760872.

The previous prime is 1021141291. The next prime is 1021141313. The reversal of 1021141311 is 1131411201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1021141311 - 2²⁵ = 987586879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021141313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170190216 + ... + 170190221.

It is an arithmetic number, because the mean of its divisors is an integer number (340380438).

Almost surely, 2^1021141311 is an apocalyptic number.

1021141311 is a deficient number, since it is larger than the sum of its proper divisors (340380441).

1021141311 is an equidigital number, since it uses as much as digits as its factorization.

1021141311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340380440.

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 1021141311 is about 31955.3017666865. The cubic root of 1021141311 is about 1006.9980171859.

Adding to 1021141311 its reverse (1131411201), we get a palindrome (2152552512).

The spelling of 1021141311 in words is "one billion, twenty-one million, one hundred forty-one thousand, three hundred eleven".