2012203031 has 4 divisors (see below), whose sum is σ = 2012703072. Its totient is φ = 2011702992.

The previous prime is 2012203009. The next prime is 2012203051. The reversal of 2012203031 is 1303022102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1303022102 = 2 ⋅651511051.

It is a cyclic number.

It is not a de Polignac number, because 2012203031 - 2⁶ = 2012202967 is a prime.

It is a super-2 number, since 2×2012203031² = 8097922075931173922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012202997 and 2012203015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012203051) 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, 243935 + ... + 252048.

It is an arithmetic number, because the mean of its divisors is an integer number (503175768).

Almost surely, 2^2012203031 is an apocalyptic number.

2012203031 is a deficient number, since it is larger than the sum of its proper divisors (500041).

2012203031 is an equidigital number, since it uses as much as digits as its factorization.

2012203031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500040.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2012203031 is about 44857.5861031331. The cubic root of 2012203031 is about 1262.4783317655.

Adding to 2012203031 its reverse (1303022102), we get a palindrome (3315225133).

The spelling of 2012203031 in words is "two billion, twelve million, two hundred three thousand, thirty-one".