23121340402 has 8 divisors (see below), whose sum is σ = 34689651696. Its totient is φ = 11558123172.

The previous prime is 23121340397. The next prime is 23121340427. The reversal of 23121340402 is 20404312132.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262148 + ... + 1280335.

It is an arithmetic number, because the mean of its divisors is an integer number (4336206462).

Almost surely, 2^23121340402 is an apocalyptic number.

23121340402 is a deficient number, since it is larger than the sum of its proper divisors (11568311294).

23121340402 is a wasteful number, since it uses less digits than its factorization.

23121340402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547032.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 23121340402 its reverse (20404312132), we get a palindrome (43525652534).

The spelling of 23121340402 in words is "twenty-three billion, one hundred twenty-one million, three hundred forty thousand, four hundred two".