123402100142 has 8 divisors (see below), whose sum is σ = 185524798800. Its totient is φ = 61560500544.

The previous prime is 123402100111. The next prime is 123402100147. The reversal of 123402100142 is 241001204321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123402100147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70273667 + ... + 70275422.

It is an arithmetic number, because the mean of its divisors is an integer number (23190599850).

Almost surely, 2^123402100142 is an apocalyptic number.

123402100142 is a deficient number, since it is larger than the sum of its proper divisors (62122698658).

123402100142 is a wasteful number, since it uses less digits than its factorization.

123402100142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140549530.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 123402100142 its reverse (241001204321), we get a palindrome (364403304463).

The spelling of 123402100142 in words is "one hundred twenty-three billion, four hundred two million, one hundred thousand, one hundred forty-two".