131211223300 has 18 divisors (see below), whose sum is σ = 284728354778. Its totient is φ = 52484489280.

The previous prime is 131211223291. The next prime is 131211223337. The reversal of 131211223300 is 3322112131.

It can be written as a sum of positive squares in 3 ways, for example, as 40413865024 + 90797358276 = 201032^2 + 301326^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 656056017 + ... + 656056216.

Almost surely, 2^131211223300 is an apocalyptic number.

131211223300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131211223300 is an abundant number, since it is smaller than the sum of its proper divisors (153517131478).

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

131211223300 is a wasteful number, since it uses less digits than its factorization.

131211223300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312112247 (or 1312112240 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131211223300 its reverse (3322112131), we get a palindrome (134533335431).

The spelling of 131211223300 in words is "one hundred thirty-one billion, two hundred eleven million, two hundred twenty-three thousand, three hundred".