123311243201 has 4 divisors (see below), whose sum is σ = 123312416304. Its totient is φ = 123310070100.

The previous prime is 123311243191. The next prime is 123311243291. The reversal of 123311243201 is 102342113321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123311243201 - 2³⁰ = 122237501377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123311243291) 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, 411455 + ... + 644916.

It is an arithmetic number, because the mean of its divisors is an integer number (30828104076).

Almost surely, 2^123311243201 is an apocalyptic number.

It is an amenable number.

123311243201 is a deficient number, since it is larger than the sum of its proper divisors (1173103).

123311243201 is a wasteful number, since it uses less digits than its factorization.

123311243201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173102.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 123311243201 its reverse (102342113321), we get a palindrome (225653356522).

The spelling of 123311243201 in words is "one hundred twenty-three billion, three hundred eleven million, two hundred forty-three thousand, two hundred one".