1151240031 has 12 divisors (see below), whose sum is σ = 1663640160. Its totient is φ = 767152800.

The previous prime is 1151240011. The next prime is 1151240033. The reversal of 1151240031 is 1300421511.

It is not a de Polignac number, because 1151240031 - 2⁶ = 1151239967 is a prime.

It is a super-2 number, since 2×1151240031² = 2650707217953761922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1151239986 and 1151240013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151240033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6046 + ... + 48363.

It is an arithmetic number, because the mean of its divisors is an integer number (138636680).

Almost surely, 2^1151240031 is an apocalyptic number.

1151240031 is a deficient number, since it is larger than the sum of its proper divisors (512400129).

1151240031 is a wasteful number, since it uses less digits than its factorization.

1151240031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56766 (or 56763 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1151240031 is about 33929.9282492610. The cubic root of 1151240031 is about 1048.0659881992.

Adding to 1151240031 its reverse (1300421511), we get a palindrome (2451661542).

The spelling of 1151240031 in words is "one billion, one hundred fifty-one million, two hundred forty thousand, thirty-one".