1020634365331 has 4 divisors (see below), whose sum is σ = 1166439274672. Its totient is φ = 874829455992.

The previous prime is 1020634365329. The next prime is 1020634365367. The reversal of 1020634365331 is 1335634360201.

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

It is a cyclic number.

It is not a de Polignac number, because 1020634365331 - 2¹ = 1020634365329 is a prime.

It is a super-4 number, since 4×1020634365331⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1020634365371) 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, 72902454660 + ... + 72902454673.

It is an arithmetic number, because the mean of its divisors is an integer number (291609818668).

Almost surely, 2^{1020634365331} is an apocalyptic number.

1020634365331 is a deficient number, since it is larger than the sum of its proper divisors (145804909341).

1020634365331 is an equidigital number, since it uses as much as digits as its factorization.

1020634365331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145804909340.

The product of its (nonzero) digits is 116640, while the sum is 37.

The spelling of 1020634365331 in words is "one trillion, twenty billion, six hundred thirty-four million, three hundred sixty-five thousand, three hundred thirty-one".