131121302541222 has 32 divisors (see below), whose sum is σ = 299715907659264. Its totient is φ = 37461970137600.

The previous prime is 131121302541221. The next prime is 131121302541223. The reversal of 131121302541222 is 222145203121131.

It is an interprime number because it is at equal distance from previous prime (131121302541221) and next prime (131121302541223).

It is a self number, because there is not a number n which added to its sum of digits gives 131121302541222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131121302541221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51200154 + ... + 53700077.

It is an arithmetic number, because the mean of its divisors is an integer number (9366122114352).

Almost surely, 2^{131121302541222} is an apocalyptic number.

131121302541222 is an abundant number, since it is smaller than the sum of its proper divisors (168594605118042).

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

131121302541222 is a wasteful number, since it uses less digits than its factorization.

131121302541222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104930004.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 131121302541222 its reverse (222145203121131), we get a palindrome (353266505662353).

The spelling of 131121302541222 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, three hundred two million, five hundred forty-one thousand, two hundred twenty-two".