223030312031 has 4 divisors (see below), whose sum is σ = 223210612632. Its totient is φ = 222850011432.

The previous prime is 223030311991. The next prime is 223030312033. The reversal of 223030312031 is 130213030322.

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 223030312031 - 2³⁰ = 221956570207 is a prime.

It is a super-2 number, since 2×223030312031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223030311994 and 223030312012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223030312033) 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, 90148445 + ... + 90150918.

It is an arithmetic number, because the mean of its divisors is an integer number (55802653158).

Almost surely, 2^223030312031 is an apocalyptic number.

223030312031 is a deficient number, since it is larger than the sum of its proper divisors (180300601).

223030312031 is a wasteful number, since it uses less digits than its factorization.

223030312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180300600.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 223030312031 its reverse (130213030322), we get a palindrome (353243342353).

The spelling of 223030312031 in words is "two hundred twenty-three billion, thirty million, three hundred twelve thousand, thirty-one".