1020350053533 has 4 divisors (see below), whose sum is σ = 1360466738048. Its totient is φ = 680233369020.

The previous prime is 1020350053531. The next prime is 1020350053589. The reversal of 1020350053533 is 3353500530201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1020350053533 - 2¹ = 1020350053531 is a prime.

It is a super-2 number, since 2×1020350053533² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020350053533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020350053531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170058342253 + ... + 170058342258.

It is an arithmetic number, because the mean of its divisors is an integer number (340116684512).

Almost surely, 2^{1020350053533} is an apocalyptic number.

It is an amenable number.

1020350053533 is a deficient number, since it is larger than the sum of its proper divisors (340116684515).

1020350053533 is an equidigital number, since it uses as much as digits as its factorization.

1020350053533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340116684514.

The product of its (nonzero) digits is 20250, while the sum is 30.

Adding to 1020350053533 its reverse (3353500530201), we get a palindrome (4373850583734).

The spelling of 1020350053533 in words is "one trillion, twenty billion, three hundred fifty million, fifty-three thousand, five hundred thirty-three".