1020010531 has 4 divisors (see below), whose sum is σ = 1033983352. Its totient is φ = 1006037712.

The previous prime is 1020010517. The next prime is 1020010547. The reversal of 1020010531 is 1350100201.

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 1020010531 - 2¹³ = 1020002339 is a prime.

It is a super-2 number, since 2×1020010531² = 2080842966701803922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020010031) 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, 6986301 + ... + 6986446.

It is an arithmetic number, because the mean of its divisors is an integer number (258495838).

Almost surely, 2^1020010531 is an apocalyptic number.

1020010531 is a deficient number, since it is larger than the sum of its proper divisors (13972821).

1020010531 is an equidigital number, since it uses as much as digits as its factorization.

1020010531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13972820.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1020010531 is about 31937.6037141173. The cubic root of 1020010531 is about 1006.6261738435.

Adding to 1020010531 its reverse (1350100201), we get a palindrome (2370110732).

The spelling of 1020010531 in words is "one billion, twenty million, ten thousand, five hundred thirty-one".