23337701089921 has 9 divisors (see below), whose sum is σ = 23671378581699. Its totient is φ = 23008662910800.

The previous prime is 23337701089919. The next prime is 23337701089943. The reversal of 23337701089921 is 12998010773332.

The square root of 23337701089921 is 4830911.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 22736579987521 + 601121102400 = 4768289^2 + 775320^2 .

It is not a de Polignac number, because 23337701089921 - 2¹ = 23337701089919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23337701089961) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 342960661 + ... + 343028701.

Almost surely, 2^{23337701089921} is an apocalyptic number.

23337701089921 is the 4830911-st square number.

23337701089921 is the 2415456-th centered octagonal number.

It is an amenable number.

23337701089921 is a deficient number, since it is larger than the sum of its proper divisors (333677491778).

23337701089921 is an frugal number, since it uses more digits than its factorization.

23337701089921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136224 (or 68112 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 55.

The spelling of 23337701089921 in words is "twenty-three trillion, three hundred thirty-seven billion, seven hundred one million, eighty-nine thousand, nine hundred twenty-one".