1021303440133 has 16 divisors (see below), whose sum is σ = 1091793645360. Its totient is φ = 951983456256.

The previous prime is 1021303440127. The next prime is 1021303440193. The reversal of 1021303440133 is 3310443031201.

It can be written as a sum of positive squares in 8 ways, for example, as 87747473284 + 933555966849 = 296222^2 + 966207^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021303440133 - 2³³ = 1012713505541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021303440098 and 1021303440107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021303440193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2286583 + ... + 2696491.

It is an arithmetic number, because the mean of its divisors is an integer number (68237102835).

Almost surely, 2^{1021303440133} is an apocalyptic number.

It is an amenable number.

1021303440133 is a deficient number, since it is larger than the sum of its proper divisors (70490205227).

1021303440133 is a wasteful number, since it uses less digits than its factorization.

1021303440133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411336.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1021303440133 its reverse (3310443031201), we get a palindrome (4331746471334).

The spelling of 1021303440133 in words is "one trillion, twenty-one billion, three hundred three million, four hundred forty thousand, one hundred thirty-three".