1201111100231 has 8 divisors (see below), whose sum is σ = 1373448113664. Its totient is φ = 1028961515160.

The previous prime is 1201111100221. The next prime is 1201111100239. The reversal of 1201111100231 is 1320011111021.

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 1201111100231 - 2¹⁴ = 1201111083847 is a prime.

It is a super-2 number, since 2×1201111100231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201111100239) 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, 46843355 + ... + 46868988.

It is an arithmetic number, because the mean of its divisors is an integer number (171681014208).

Almost surely, 2^{1201111100231} is an apocalyptic number.

1201111100231 is a deficient number, since it is larger than the sum of its proper divisors (172337013433).

1201111100231 is an equidigital number, since it uses as much as digits as its factorization.

1201111100231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93714181.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1201111100231 its reverse (1320011111021), we get a palindrome (2521122211252).

The spelling of 1201111100231 in words is "one trillion, two hundred one billion, one hundred eleven million, one hundred thousand, two hundred thirty-one".