1021151133 has 6 divisors (see below), whose sum is σ = 1474996094. Its totient is φ = 680767416.

The previous prime is 1021151113. The next prime is 1021151147. The reversal of 1021151133 is 3311511201.

It can be written as a sum of positive squares in only one way, i.e., 827885529 + 193265604 = 28773^2 + 13902^2 .

It is not a de Polignac number, because 1021151133 - 2⁶ = 1021151069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021151113) 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 5 ways as a sum of consecutive naturals, for example, 56730610 + ... + 56730627.

Almost surely, 2^1021151133 is an apocalyptic number.

It is an amenable number.

1021151133 is a deficient number, since it is larger than the sum of its proper divisors (453844961).

1021151133 is a wasteful number, since it uses less digits than its factorization.

1021151133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113461243 (or 113461240 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1021151133 is about 31955.4554497350. The cubic root of 1021151133 is about 1007.0012458291.

Adding to 1021151133 its reverse (3311511201), we get a palindrome (4332662334).

The spelling of 1021151133 in words is "one billion, twenty-one million, one hundred fifty-one thousand, one hundred thirty-three".