123015701 has 2 divisors, whose sum is σ = 123015702. Its totient is φ = 123015700.

The previous prime is 123015679. The next prime is 123015769. The reversal of 123015701 is 107510321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64416676 + 58599025 = 8026^2 + 7655^2 .

It is an emirp because it is prime and its reverse (107510321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123015701 - 2¹⁸ = 122753557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123015401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61507850 + 61507851.

It is an arithmetic number, because the mean of its divisors is an integer number (61507851).

Almost surely, 2^123015701 is an apocalyptic number.

It is an amenable number.

123015701 is a deficient number, since it is larger than the sum of its proper divisors (1).

123015701 is an equidigital number, since it uses as much as digits as its factorization.

123015701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 123015701 is about 11091.2443395680. The cubic root of 123015701 is about 497.3401434166.

The spelling of 123015701 in words is "one hundred twenty-three million, fifteen thousand, seven hundred one".