131211444134002 has 4 divisors (see below), whose sum is σ = 196817166201006. Its totient is φ = 65605722067000.

The previous prime is 131211444133981. The next prime is 131211444134011. The reversal of 131211444134002 is 200431444112131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 120134335857561 + 11077108276441 = 10960581^2 + 3328229^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32802861033499 + ... + 32802861033502.

Almost surely, 2^{131211444134002} is an apocalyptic number.

131211444134002 is a deficient number, since it is larger than the sum of its proper divisors (65605722067004).

131211444134002 is an equidigital number, since it uses as much as digits as its factorization.

131211444134002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65605722067003.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 131211444134002 its reverse (200431444112131), we get a palindrome (331642888246133).

The spelling of 131211444134002 in words is "one hundred thirty-one trillion, two hundred eleven billion, four hundred forty-four million, one hundred thirty-four thousand, two".