123201346511 has 8 divisors (see below), whose sum is σ = 123542112000. Its totient is φ = 122860864152.

The previous prime is 123201346397. The next prime is 123201346529. The reversal of 123201346511 is 115643102321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123201346511 - 2¹⁸ = 123201084367 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 (123201346571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815996 + ... + 955118.

It is an arithmetic number, because the mean of its divisors is an integer number (15442764000).

Almost surely, 2^123201346511 is an apocalyptic number.

123201346511 is a deficient number, since it is larger than the sum of its proper divisors (340765489).

123201346511 is a wasteful number, since it uses less digits than its factorization.

123201346511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141565.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 123201346511 its reverse (115643102321), we get a palindrome (238844448832).

The spelling of 123201346511 in words is "one hundred twenty-three billion, two hundred one million, three hundred forty-six thousand, five hundred eleven".