123711049 has 16 divisors (see below), whose sum is σ = 159215616. Its totient is φ = 93286800.

The previous prime is 123711037. The next prime is 123711061. The reversal of 123711049 is 940117321.

It is an interprime number because it is at equal distance from previous prime (123711037) and next prime (123711061).

It is a cyclic number.

It is not a de Polignac number, because 123711049 - 2¹⁷ = 123579977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123711019) 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 15 ways as a sum of consecutive naturals, for example, 23527 + ... + 28300.

It is an arithmetic number, because the mean of its divisors is an integer number (9950976).

Almost surely, 2^123711049 is an apocalyptic number.

It is an amenable number.

123711049 is a deficient number, since it is larger than the sum of its proper divisors (35504567).

123711049 is a wasteful number, since it uses less digits than its factorization.

123711049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51876.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 123711049 is about 11122.5468756036. The cubic root of 123711049 is about 498.2754574109.

The spelling of 123711049 in words is "one hundred twenty-three million, seven hundred eleven thousand, forty-nine".