1020133312131 has 4 divisors (see below), whose sum is σ = 1360177749512. Its totient is φ = 680088874752.

The previous prime is 1020133312129. The next prime is 1020133312153. The reversal of 1020133312131 is 1312133310201.

It is a happy number.

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

It is not a de Polignac number, because 1020133312131 - 2¹ = 1020133312129 is a prime.

It is a super-2 number, since 2×1020133312131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020133312098 and 1020133312107.

It is not an unprimeable number, because it can be changed into a prime (1020133312111) 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, 170022218686 + ... + 170022218691.

It is an arithmetic number, because the mean of its divisors is an integer number (340044437378).

Almost surely, 2^{1020133312131} is an apocalyptic number.

1020133312131 is a deficient number, since it is larger than the sum of its proper divisors (340044437381).

1020133312131 is an equidigital number, since it uses as much as digits as its factorization.

1020133312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340044437380.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1020133312131 its reverse (1312133310201), we get a palindrome (2332266622332).

The spelling of 1020133312131 in words is "one trillion, twenty billion, one hundred thirty-three million, three hundred twelve thousand, one hundred thirty-one".