133231221230 has 64 divisors (see below), whose sum is σ = 252939110400. Its totient is φ = 50461488000.

The previous prime is 133231221217. The next prime is 133231221283. The reversal of 133231221230 is 32122132331.

It is a junction number, because it is equal to n+sod(n) for n = 133231221196 and 133231221205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3073205 + ... + 3116255.

It is an arithmetic number, because the mean of its divisors is an integer number (3952173600).

Almost surely, 2^133231221230 is an apocalyptic number.

133231221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133231221230 is a deficient number, since it is larger than the sum of its proper divisors (119707889170).

133231221230 is a wasteful number, since it uses less digits than its factorization.

133231221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43305.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 133231221230 its reverse (32122132331), we get a palindrome (165353353561).

The spelling of 133231221230 in words is "one hundred thirty-three billion, two hundred thirty-one million, two hundred twenty-one thousand, two hundred thirty".