131001311110121 has 4 divisors (see below), whose sum is σ = 131372419640532. Its totient is φ = 130630202579712.

The previous prime is 131001311110099. The next prime is 131001311110127. The reversal of 131001311110121 is 121011113100131.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41775604194025 + 89225706916096 = 6463405^2 + 9445936^2 .

It is not a de Polignac number, because 131001311110121 - 2⁶ = 131001311110057 is a prime.

It is a super-2 number, since 2×131001311110121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131001311110121.

It is not an unprimeable number, because it can be changed into a prime (131001311110127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185554264676 + ... + 185554265381.

It is an arithmetic number, because the mean of its divisors is an integer number (32843104910133).

Almost surely, 2^{131001311110121} is an apocalyptic number.

It is an amenable number.

131001311110121 is a deficient number, since it is larger than the sum of its proper divisors (371108530411).

131001311110121 is an equidigital number, since it uses as much as digits as its factorization.

131001311110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371108530410.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 131001311110121 its reverse (121011113100131), we get a palindrome (252012424210252).

The spelling of 131001311110121 in words is "one hundred thirty-one trillion, one billion, three hundred eleven million, one hundred ten thousand, one hundred twenty-one".