223131321040 has 40 divisors (see below), whose sum is σ = 519728833440. Its totient is φ = 89089343616.

The previous prime is 223131321013. The next prime is 223131321067. The reversal of 223131321040 is 40123131322.

It is an interprime number because it is at equal distance from previous prime (223131321013) and next prime (223131321067).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×223131321040³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2505730 + ... + 2593249.

It is an arithmetic number, because the mean of its divisors is an integer number (12993220836).

Almost surely, 2^223131321040 is an apocalyptic number.

223131321040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223131321040 is an abundant number, since it is smaller than the sum of its proper divisors (296597512400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223131321040 is a wasteful number, since it uses less digits than its factorization.

223131321040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5099539 (or 5099533 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 223131321040 its reverse (40123131322), we get a palindrome (263254452362).

The spelling of 223131321040 in words is "two hundred twenty-three billion, one hundred thirty-one million, three hundred twenty-one thousand, forty".