123015350077 has 2 divisors, whose sum is σ = 123015350078. Its totient is φ = 123015350076.

The previous prime is 123015350011. The next prime is 123015350119. The reversal of 123015350077 is 770053510321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63026604601 + 59988745476 = 251051^2 + 244926^2 .

It is a cyclic number.

It is not a de Polignac number, because 123015350077 - 2³¹ = 120867866429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123015351077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61507675038 + 61507675039.

It is an arithmetic number, because the mean of its divisors is an integer number (61507675039).

Almost surely, 2^123015350077 is an apocalyptic number.

It is an amenable number.

123015350077 is a deficient number, since it is larger than the sum of its proper divisors (1).

123015350077 is an equidigital number, since it uses as much as digits as its factorization.

123015350077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22050, while the sum is 34.

Adding to 123015350077 its reverse (770053510321), we get a palindrome (893068860398).

The spelling of 123015350077 in words is "one hundred twenty-three billion, fifteen million, three hundred fifty thousand, seventy-seven".