131211503054 has 4 divisors (see below), whose sum is σ = 196817254584. Its totient is φ = 65605751526.

The previous prime is 131211503009. The next prime is 131211503147. The reversal of 131211503054 is 450305112131.

131211503054 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450305112131 = 7 ⋅64329301733.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32802875762 + ... + 32802875765.

It is an arithmetic number, because the mean of its divisors is an integer number (49204313646).

Almost surely, 2^131211503054 is an apocalyptic number.

131211503054 is a deficient number, since it is larger than the sum of its proper divisors (65605751530).

131211503054 is an equidigital number, since it uses as much as digits as its factorization.

131211503054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65605751529.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 131211503054 its reverse (450305112131), we get a palindrome (581516615185).

The spelling of 131211503054 in words is "one hundred thirty-one billion, two hundred eleven million, five hundred three thousand, fifty-four".