131001111121 has 8 divisors (see below), whose sum is σ = 138931152480. Its totient is φ = 123095969088.

The previous prime is 131001111113. The next prime is 131001111149. The reversal of 131001111121 is 121111100131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131001111121 - 2³ = 131001111113 is a prime.

It is a super-2 number, since 2×131001111121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131001111161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6213991 + ... + 6235036.

It is an arithmetic number, because the mean of its divisors is an integer number (17366394060).

Almost surely, 2^131001111121 is an apocalyptic number.

It is an amenable number.

131001111121 is a deficient number, since it is larger than the sum of its proper divisors (7930041359).

131001111121 is a wasteful number, since it uses less digits than its factorization.

131001111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12449663.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 131001111121 its reverse (121111100131), we get a palindrome (252112211252).

The spelling of 131001111121 in words is "one hundred thirty-one billion, one million, one hundred eleven thousand, one hundred twenty-one".