1117631351 has 4 divisors (see below), whose sum is σ = 1121272152. Its totient is φ = 1113990552.

The previous prime is 1117631327. The next prime is 1117631363. The reversal of 1117631351 is 1531367111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1531367111 = 19 ⋅80598269.

It is a cyclic number.

It is not a de Polignac number, because 1117631351 - 2¹⁸ = 1117369207 is a prime.

It is a super-4 number, since 4×1117631351⁴ (a number of 37 digits) contains 4444 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 (1117631321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1819940 + ... + 1820553.

It is an arithmetic number, because the mean of its divisors is an integer number (280318038).

Almost surely, 2^1117631351 is an apocalyptic number.

1117631351 is a deficient number, since it is larger than the sum of its proper divisors (3640801).

1117631351 is an equidigital number, since it uses as much as digits as its factorization.

1117631351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640800.

The product of its digits is 1890, while the sum is 29.

The square root of 1117631351 is about 33430.9938679663. The cubic root of 1117631351 is about 1037.7662086712.

Adding to 1117631351 its reverse (1531367111), we get a palindrome (2648998462).

The spelling of 1117631351 in words is "one billion, one hundred seventeen million, six hundred thirty-one thousand, three hundred fifty-one".