131223133210 has 32 divisors (see below), whose sum is σ = 254684852352. Its totient is φ = 48391836480.

The previous prime is 131223133199. The next prime is 131223133231. The reversal of 131223133210 is 12331322131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 516894 + ... + 727753.

It is an arithmetic number, because the mean of its divisors is an integer number (7958901636).

Almost surely, 2^131223133210 is an apocalyptic number.

131223133210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131223133210 is a deficient number, since it is larger than the sum of its proper divisors (123461719142).

131223133210 is a wasteful number, since it uses less digits than its factorization.

131223133210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245478.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131223133210 its reverse (12331322131), we get a palindrome (143554455341).

The spelling of 131223133210 in words is "one hundred thirty-one billion, two hundred twenty-three million, one hundred thirty-three thousand, two hundred ten".