31020123022230 has 16 divisors (see below), whose sum is σ = 74448295253424. Its totient is φ = 8272032805920.

The previous prime is 31020123022169. The next prime is 31020123022237. The reversal of 31020123022230 is 3222032102013.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31020123022197 and 31020123022206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020123022237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517002050341 + ... + 517002050400.

It is an arithmetic number, because the mean of its divisors is an integer number (4653018453339).

Almost surely, 2^{31020123022230} is an apocalyptic number.

31020123022230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31020123022230 is an abundant number, since it is smaller than the sum of its proper divisors (43428172231194).

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

31020123022230 is a wasteful number, since it uses less digits than its factorization.

31020123022230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034004100751.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31020123022230 its reverse (3222032102013), we get a palindrome (34242155124243).

The spelling of 31020123022230 in words is "thirty-one trillion, twenty billion, one hundred twenty-three million, twenty-two thousand, two hundred thirty".