100111231221131 has 8 divisors (see below), whose sum is σ = 107930439954624. Its totient is φ = 92308928886720.

The previous prime is 100111231221107. The next prime is 100111231221139. The reversal of 100111231221131 is 131122132111001.

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

It is not a de Polignac number, because 100111231221131 - 2¹⁸ = 100111230958987 is a prime.

It is a super-2 number, since 2×100111231221131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100111231221139) 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, 4226587466 + ... + 4226611151.

It is an arithmetic number, because the mean of its divisors is an integer number (13491304994328).

Almost surely, 2^{100111231221131} is an apocalyptic number.

100111231221131 is a deficient number, since it is larger than the sum of its proper divisors (7819208733493).

100111231221131 is an equidigital number, since it uses as much as digits as its factorization.

100111231221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8453199541.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 100111231221131 its reverse (131122132111001), we get a palindrome (231233363332132).

The spelling of 100111231221131 in words is "one hundred trillion, one hundred eleven billion, two hundred thirty-one million, two hundred twenty-one thousand, one hundred thirty-one".