1020010322531 has 4 divisors (see below), whose sum is σ = 1020170230200. Its totient is φ = 1019850414864.

The previous prime is 1020010322473. The next prime is 1020010322533. The reversal of 1020010322531 is 1352230100201.

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 1020010322531 - 2⁶ = 1020010322467 is a prime.

It is a super-2 number, since 2×1020010322531² (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 (1020010322533) 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, 79944266 + ... + 79957023.

It is an arithmetic number, because the mean of its divisors is an integer number (255042557550).

Almost surely, 2^{1020010322531} is an apocalyptic number.

1020010322531 is a deficient number, since it is larger than the sum of its proper divisors (159907669).

1020010322531 is an equidigital number, since it uses as much as digits as its factorization.

1020010322531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159907668.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 1020010322531 its reverse (1352230100201), we get a palindrome (2372240422732).

The spelling of 1020010322531 in words is "one trillion, twenty billion, ten million, three hundred twenty-two thousand, five hundred thirty-one".