2013220031 has 4 divisors (see below), whose sum is σ = 2119179000. Its totient is φ = 1907261064.

The previous prime is 2013220003. The next prime is 2013220039. The reversal of 2013220031 is 1300223102.

It is a happy number.

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 2013220031 - 2¹⁸ = 2012957887 is a prime.

It is a super-2 number, since 2×2013220031² = 8106109786439281922, 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 = 2013219988 and 2013220015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013220039) 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, 52979456 + ... + 52979493.

It is an arithmetic number, because the mean of its divisors is an integer number (529794750).

Almost surely, 2^2013220031 is an apocalyptic number.

2013220031 is a deficient number, since it is larger than the sum of its proper divisors (105958969).

2013220031 is a wasteful number, since it uses less digits than its factorization.

2013220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105958968.

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

The square root of 2013220031 is about 44868.9205464094. The cubic root of 2013220031 is about 1262.6909882745.

Adding to 2013220031 its reverse (1300223102), we get a palindrome (3313443133).

It can be divided in two parts, 201 and 3220031, that multiplied together give a triangular number (647226231 = T₃₅₉₇₈).

The spelling of 2013220031 in words is "two billion, thirteen million, two hundred twenty thousand, thirty-one".