31232221230130 has 32 divisors (see below), whose sum is σ = 56486909041920. Its totient is φ = 12433135720320.

The previous prime is 31232221230127. The next prime is 31232221230139. The reversal of 31232221230130 is 3103212223213.

It is a junction number, because it is equal to n+sod(n) for n = 31232221230095 and 31232221230104.

It is not an unprimeable number, because it can be changed into a prime (31232221230139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49671367 + ... + 50296213.

It is an arithmetic number, because the mean of its divisors is an integer number (1765215907560).

Almost surely, 2^{31232221230130} is an apocalyptic number.

31232221230130 is a deficient number, since it is larger than the sum of its proper divisors (25254687811790).

31232221230130 is a wasteful number, since it uses less digits than its factorization.

31232221230130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648754.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31232221230130 its reverse (3103212223213), we get a palindrome (34335433453343).

The spelling of 31232221230130 in words is "thirty-one trillion, two hundred thirty-two billion, two hundred twenty-one million, two hundred thirty thousand, one hundred thirty".