1201110400231 has 4 divisors (see below), whose sum is σ = 1372697600272. Its totient is φ = 1029523200192.

The previous prime is 1201110400229. The next prime is 1201110400241. The reversal of 1201110400231 is 1320040111021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201110400231 - 2¹ = 1201110400229 is a prime.

It is a super-2 number, since 2×1201110400231² (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 (1201110400241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85793600010 + ... + 85793600023.

It is an arithmetic number, because the mean of its divisors is an integer number (343174400068).

Almost surely, 2^{1201110400231} is an apocalyptic number.

1201110400231 is a deficient number, since it is larger than the sum of its proper divisors (171587200041).

1201110400231 is an equidigital number, since it uses as much as digits as its factorization.

1201110400231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171587200040.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1201110400231 its reverse (1320040111021), we get a palindrome (2521150511252).

The spelling of 1201110400231 in words is "one trillion, two hundred one billion, one hundred ten million, four hundred thousand, two hundred thirty-one".