1013020203 has 16 divisors (see below), whose sum is σ = 1469000736. Its totient is φ = 617222400.

The previous prime is 1013020189. The next prime is 1013020213. The reversal of 1013020203 is 3020203101.

It is a happy number.

It is not a de Polignac number, because 1013020203 - 2⁸ = 1013019947 is a prime.

It is a super-2 number, since 2×1013020203² = 2052419863372322418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1013020213) 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, 124650 + ... + 132527.

It is an arithmetic number, because the mean of its divisors is an integer number (91812546).

Almost surely, 2^1013020203 is an apocalyptic number.

1013020203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1013020203 is a deficient number, since it is larger than the sum of its proper divisors (455980533).

1013020203 is a wasteful number, since it uses less digits than its factorization.

1013020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257294.

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

The square root of 1013020203 is about 31827.9783052584. The cubic root of 1013020203 is about 1004.3213665584.

Adding to 1013020203 its reverse (3020203101), we get a palindrome (4033223304).

It can be divided in two parts, 101 and 3020203, that multiplied together give a palindrome (305040503).

The spelling of 1013020203 in words is "one billion, thirteen million, twenty thousand, two hundred three".