1151100231 has 8 divisors (see below), whose sum is σ = 1554228480. Its totient is φ = 757686072.

The previous prime is 1151100221. The next prime is 1151100233. The reversal of 1151100231 is 1320011511.

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

It is not a de Polignac number, because 1151100231 - 2¹¹ = 1151098183 is a prime.

It is a super-2 number, since 2×1151100231² = 2650063483616506722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1151100231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151100233) 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, 2428245 + ... + 2428718.

It is an arithmetic number, because the mean of its divisors is an integer number (194278560).

Almost surely, 2^1151100231 is an apocalyptic number.

1151100231 is a deficient number, since it is larger than the sum of its proper divisors (403128249).

1151100231 is an equidigital number, since it uses as much as digits as its factorization.

1151100231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4857045.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 1151100231 is about 33927.8680585739. The cubic root of 1151100231 is about 1048.0235627702.

Adding to 1151100231 its reverse (1320011511), we get a palindrome (2471111742).

The spelling of 1151100231 in words is "one billion, one hundred fifty-one million, one hundred thousand, two hundred thirty-one".