123451403135 has 8 divisors (see below), whose sum is σ = 148143755760. Its totient is φ = 98759741184.

The previous prime is 123451403123. The next prime is 123451403161. The reversal of 123451403135 is 531304154321.

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 123451403135 - 2²² = 123447208831 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383324 + ... + 627566.

It is an arithmetic number, because the mean of its divisors is an integer number (18517969470).

Almost surely, 2^123451403135 is an apocalyptic number.

123451403135 is a deficient number, since it is larger than the sum of its proper divisors (24692352625).

123451403135 is a wasteful number, since it uses less digits than its factorization.

123451403135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345337.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 123451403135 its reverse (531304154321), we get a palindrome (654755557456).

The spelling of 123451403135 in words is "one hundred twenty-three billion, four hundred fifty-one million, four hundred three thousand, one hundred thirty-five".