1020003231 has 16 divisors (see below), whose sum is σ = 1484687456. Its totient is φ = 619094016.

The previous prime is 1020003227. The next prime is 1020003233. The reversal of 1020003231 is 1323000201.

It is a happy number.

It is not a de Polignac number, because 1020003231 - 2² = 1020003227 is a prime.

It is a super-2 number, since 2×1020003231² = 2080813182500878722, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020003233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176290 + ... + 181983.

It is an arithmetic number, because the mean of its divisors is an integer number (92792966).

Almost surely, 2^1020003231 is an apocalyptic number.

1020003231 is a deficient number, since it is larger than the sum of its proper divisors (464684225).

1020003231 is a wasteful number, since it uses less digits than its factorization.

1020003231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358362.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1020003231 is about 31937.4894285697. The cubic root of 1020003231 is about 1006.6237724341.

Adding to 1020003231 its reverse (1323000201), we get a palindrome (2343003432).

The spelling of 1020003231 in words is "one billion, twenty million, three thousand, two hundred thirty-one".