1020205034153 has 8 divisors (see below), whose sum is σ = 1020682033800. Its totient is φ = 1019728136448.

The previous prime is 1020205034071. The next prime is 1020205034159. The reversal of 1020205034153 is 3514305020201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16497604249 + 1003707429904 = 128443^2 + 1001852^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020205034153 - 2³⁰ = 1019131292329 is a prime.

It is a super-2 number, since 2×1020205034153² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020205034159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25763153 + ... + 25802721.

It is an arithmetic number, because the mean of its divisors is an integer number (127585254225).

Almost surely, 2^{1020205034153} is an apocalyptic number.

It is an amenable number.

1020205034153 is a deficient number, since it is larger than the sum of its proper divisors (476999647).

1020205034153 is an equidigital number, since it uses as much as digits as its factorization.

1020205034153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50971.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 1020205034153 in words is "one trillion, twenty billion, two hundred five million, thirty-four thousand, one hundred fifty-three".