1123633031401 has 4 divisors (see below), whose sum is σ = 1125789717204. Its totient is φ = 1121476345600.

The previous prime is 1123633031363. The next prime is 1123633031497. The reversal of 1123633031401 is 1041303363211.

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 827153870400 + 296479161001 = 909480^2 + 544499^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123633031401 - 2⁷ = 1123633031273 is a prime.

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 1123633031401.

It is not an unprimeable number, because it can be changed into a prime (1123633031201) 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, 1078342120 + ... + 1078343161.

It is an arithmetic number, because the mean of its divisors is an integer number (281447429301).

Almost surely, 2^{1123633031401} is an apocalyptic number.

It is an amenable number.

1123633031401 is a deficient number, since it is larger than the sum of its proper divisors (2156685803).

1123633031401 is an equidigital number, since it uses as much as digits as its factorization.

1123633031401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156685802.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 1123633031401 its reverse (1041303363211), we get a palindrome (2164936394612).

The spelling of 1123633031401 in words is "one trillion, one hundred twenty-three billion, six hundred thirty-three million, thirty-one thousand, four hundred one".