1151725123 has 2 divisors, whose sum is σ = 1151725124. Its totient is φ = 1151725122.

The previous prime is 1151725103. The next prime is 1151725199. The reversal of 1151725123 is 3215271511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1151725123 - 2¹³ = 1151716931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1151725091 and 1151725100.

It is not a weakly prime, because it can be changed into another prime (1151725103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575862561 + 575862562.

It is an arithmetic number, because the mean of its divisors is an integer number (575862562).

Almost surely, 2^1151725123 is an apocalyptic number.

1151725123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151725123 is an equidigital number, since it uses as much as digits as its factorization.

1151725123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2100, while the sum is 28.

The square root of 1151725123 is about 33937.0759347354. The cubic root of 1151725123 is about 1048.2131735590.

Adding to 1151725123 its reverse (3215271511), we get a palindrome (4366996634).

It can be divided in two parts, 115172 and 5123, that added together give a triangular number (120295 = T₄₉₀).

The spelling of 1151725123 in words is "one billion, one hundred fifty-one million, seven hundred twenty-five thousand, one hundred twenty-three".