31302000020223 has 6 divisors (see below), whose sum is σ = 45214000029224. Its totient is φ = 20868000013476.

The previous prime is 31302000020219. The next prime is 31302000020227. The reversal of 31302000020223 is 32202000020313.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31302000020219) and next prime (31302000020227).

It is not a de Polignac number, because 31302000020223 - 2² = 31302000020219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31302000020196 and 31302000020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31302000020227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1739000001115 + ... + 1739000001132.

Almost surely, 2^{31302000020223} is an apocalyptic number.

31302000020223 is a deficient number, since it is larger than the sum of its proper divisors (13912000009001).

31302000020223 is a wasteful number, since it uses less digits than its factorization.

31302000020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478000002253 (or 3478000002250 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 31302000020223 its reverse (32202000020313), we get a palindrome (63504000040536).

The spelling of 31302000020223 in words is "thirty-one trillion, three hundred two billion, twenty thousand, two hundred twenty-three".