1151430125281 has 2 divisors, whose sum is σ = 1151430125282. Its totient is φ = 1151430125280.

The previous prime is 1151430125269. The next prime is 1151430125347. The reversal of 1151430125281 is 1825210341511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1076157264400 + 75272860881 = 1037380^2 + 274359^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151430125281 - 2³⁹ = 601674311393 is a prime.

It is a super-2 number, since 2×1151430125281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1151430125201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575715062640 + 575715062641.

It is an arithmetic number, because the mean of its divisors is an integer number (575715062641).

Almost surely, 2^{1151430125281} is an apocalyptic number.

It is an amenable number.

1151430125281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151430125281 is an equidigital number, since it uses as much as digits as its factorization.

1151430125281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 34.

Adding to 1151430125281 its reverse (1825210341511), we get a palindrome (2976640466792).

The spelling of 1151430125281 in words is "one trillion, one hundred fifty-one billion, four hundred thirty million, one hundred twenty-five thousand, two hundred eighty-one".