4423220502031 has 4 divisors (see below), whose sum is σ = 4423352222200. Its totient is φ = 4423088781864.

The previous prime is 4423220502011. The next prime is 4423220502037. The reversal of 4423220502031 is 1302050223244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4423220502031 is a prime.

It is a super-2 number, since 2×4423220502031² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4423220502037) 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, 65809701 + ... + 65876878.

It is an arithmetic number, because the mean of its divisors is an integer number (1105838055550).

Almost surely, 2^{4423220502031} is an apocalyptic number.

4423220502031 is a deficient number, since it is larger than the sum of its proper divisors (131720169).

4423220502031 is a wasteful number, since it uses less digits than its factorization.

4423220502031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131720168.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 4423220502031 its reverse (1302050223244), we get a palindrome (5725270725275).

The spelling of 4423220502031 in words is "four trillion, four hundred twenty-three billion, two hundred twenty million, five hundred two thousand, thirty-one".