123040451402 has 16 divisors (see below), whose sum is σ = 201356034624. Its totient is φ = 55922724000.

The previous prime is 123040451399. The next prime is 123040451411. The reversal of 123040451402 is 204154040321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33902 + ... + 497222.

It is an arithmetic number, because the mean of its divisors is an integer number (12584752164).

Almost surely, 2^123040451402 is an apocalyptic number.

123040451402 is a deficient number, since it is larger than the sum of its proper divisors (78315583222).

123040451402 is a wasteful number, since it uses less digits than its factorization.

123040451402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475405.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 123040451402 its reverse (204154040321), we get a palindrome (327194491723).

The spelling of 123040451402 in words is "one hundred twenty-three billion, forty million, four hundred fifty-one thousand, four hundred two".