123011432035 has 4 divisors (see below), whose sum is σ = 147613718448. Its totient is φ = 98409145624.

The previous prime is 123011432023. The next prime is 123011432053. The reversal of 123011432035 is 530234110321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123011432035 - 2¹⁵ = 123011399267 is a prime.

It is a super-2 number, since 2×123011432035² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12301143199 + ... + 12301143208.

It is an arithmetic number, because the mean of its divisors is an integer number (36903429612).

Almost surely, 2^123011432035 is an apocalyptic number.

123011432035 is a deficient number, since it is larger than the sum of its proper divisors (24602286413).

123011432035 is an equidigital number, since it uses as much as digits as its factorization.

123011432035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24602286412.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 123011432035 its reverse (530234110321), we get a palindrome (653245542356).

The spelling of 123011432035 in words is "one hundred twenty-three billion, eleven million, four hundred thirty-two thousand, thirty-five".