123201453321 has 24 divisors (see below), whose sum is σ = 196618181760. Its totient is φ = 73941876096.

The previous prime is 123201453313. The next prime is 123201453329. The reversal of 123201453321 is 123354102321.

123201453321 is a `hidden beast` number, since 1 + 2 + 3 + 201 + 453 + 3 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (123201453313) and next prime (123201453329).

It is not a de Polignac number, because 123201453321 - 2³ = 123201453313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123201453329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17501661 + ... + 17508698.

It is an arithmetic number, because the mean of its divisors is an integer number (8192424240).

Almost surely, 2^123201453321 is an apocalyptic number.

It is an amenable number.

123201453321 is a deficient number, since it is larger than the sum of its proper divisors (73416728439).

123201453321 is a wasteful number, since it uses less digits than its factorization.

123201453321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35010405 (or 35010402 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 123201453321 its reverse (123354102321), we get a palindrome (246555555642).

It can be divided in two parts, 12320 and 1453321, that added together give a palindrome (1465641).

The spelling of 123201453321 in words is "one hundred twenty-three billion, two hundred one million, four hundred fifty-three thousand, three hundred twenty-one".