23220303121345 has 16 divisors (see below), whose sum is σ = 30531397376448. Its totient is φ = 16813098927040.

The previous prime is 23220303121291. The next prime is 23220303121381. The reversal of 23220303121345 is 54312130302232.

It is not a de Polignac number, because 23220303121345 - 2¹⁷ = 23220302990273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 929915554 + ... + 929940523.

It is an arithmetic number, because the mean of its divisors is an integer number (1908212336028).

Almost surely, 2^{23220303121345} is an apocalyptic number.

It is an amenable number.

23220303121345 is a deficient number, since it is larger than the sum of its proper divisors (7311094255103).

23220303121345 is a wasteful number, since it uses less digits than its factorization.

23220303121345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859856320.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 23220303121345 its reverse (54312130302232), we get a palindrome (77532433423577).

The spelling of 23220303121345 in words is "twenty-three trillion, two hundred twenty billion, three hundred three million, one hundred twenty-one thousand, three hundred forty-five".