1113321631551 has 8 divisors (see below), whose sum is σ = 1499126157744. Its totient is φ = 734865763200.

The previous prime is 1113321631549. The next prime is 1113321631577. The reversal of 1113321631551 is 1551361233111.

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

It is not a de Polignac number, because 1113321631551 - 2¹ = 1113321631549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113321631151) 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, 1837164106 + ... + 1837164711.

It is an arithmetic number, because the mean of its divisors is an integer number (187390769718).

Almost surely, 2^{1113321631551} is an apocalyptic number.

1113321631551 is a deficient number, since it is larger than the sum of its proper divisors (385804526193).

1113321631551 is a wasteful number, since it uses less digits than its factorization.

1113321631551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3674328921.

The product of its digits is 8100, while the sum is 33.

Adding to 1113321631551 its reverse (1551361233111), we get a palindrome (2664682864662).

The spelling of 1113321631551 in words is "one trillion, one hundred thirteen billion, three hundred twenty-one million, six hundred thirty-one thousand, five hundred fifty-one".