1151430031 has 2 divisors, whose sum is σ = 1151430032. Its totient is φ = 1151430030.

The previous prime is 1151430023. The next prime is 1151430067. The reversal of 1151430031 is 1300341511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1151430031 - 2³ = 1151430023 is a prime.

It is a super-3 number, since 3×1151430031³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1151429990 and 1151430008.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151430011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575715015 + 575715016.

It is an arithmetic number, because the mean of its divisors is an integer number (575715016).

Almost surely, 2^1151430031 is an apocalyptic number.

1151430031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151430031 is an equidigital number, since it uses as much as digits as its factorization.

1151430031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1151430031 is about 33932.7280217786. The cubic root of 1151430031 is about 1048.1236424324.

Adding to 1151430031 its reverse (1300341511), we get a palindrome (2451771542).

The spelling of 1151430031 in words is "one billion, one hundred fifty-one million, four hundred thirty thousand, thirty-one".