123112061 has 4 divisors (see below), whose sum is σ = 126439452. Its totient is φ = 119784672.

The previous prime is 123112051. The next prime is 123112063. The reversal of 123112061 is 160211321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160211321 = 173 ⋅926077.

It can be written as a sum of positive squares in 2 ways, for example, as 62568100 + 60543961 = 7910^2 + 7781^2 .

It is a cyclic number.

It is not a de Polignac number, because 123112061 - 2¹⁴ = 123095677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123112063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663640 + ... + 1663713.

It is an arithmetic number, because the mean of its divisors is an integer number (31609863).

Almost surely, 2^123112061 is an apocalyptic number.

It is an amenable number.

123112061 is a deficient number, since it is larger than the sum of its proper divisors (3327391).

123112061 is an equidigital number, since it uses as much as digits as its factorization.

123112061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327390.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 123112061 is about 11095.5874562819. The cubic root of 123112061 is about 497.4699674639.

Adding to 123112061 its reverse (160211321), we get a palindrome (283323382).

The spelling of 123112061 in words is "one hundred twenty-three million, one hundred twelve thousand, sixty-one".