123151151321 has 8 divisors (see below), whose sum is σ = 134556307488. Its totient is φ = 111780928000.

The previous prime is 123151151311. The next prime is 123151151327.

It is a happy number.

123151151321 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 123151151321 - 2⁶ = 123151151257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123151151327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8725835 + ... + 8739936.

It is an arithmetic number, because the mean of its divisors is an integer number (16819538436).

Almost surely, 2^123151151321 is an apocalyptic number.

123151151321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123151151321 is a deficient number, since it is larger than the sum of its proper divisors (11405156167).

123151151321 is a wasteful number, since it uses less digits than its factorization.

123151151321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17466423.

The product of its digits is 900, while the sum is 26.

It can be divided in two parts, 123151 and 151321, that added together give a palindrome (274472).

The spelling of 123151151321 in words is "one hundred twenty-three billion, one hundred fifty-one million, one hundred fifty-one thousand, three hundred twenty-one".