131212223030 has 24 divisors (see below), whose sum is σ = 274742329248. Its totient is φ = 44987047728.

The previous prime is 131212223027. The next prime is 131212223039. The reversal of 131212223030 is 30322212131.

It is a junction number, because it is equal to n+sod(n) for n = 131212222993 and 131212223011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212223039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133889534 + ... + 133890513.

It is an arithmetic number, because the mean of its divisors is an integer number (11447597052).

Almost surely, 2^131212223030 is an apocalyptic number.

131212223030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131212223030 is an abundant number, since it is smaller than the sum of its proper divisors (143530106218).

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

131212223030 is a wasteful number, since it uses less digits than its factorization.

131212223030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267780068 (or 267780061 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131212223030 its reverse (30322212131), we get a palindrome (161534435161).

The spelling of 131212223030 in words is "one hundred thirty-one billion, two hundred twelve million, two hundred twenty-three thousand, thirty".