120123215540342 has 32 divisors (see below), whose sum is σ = 216120869563392. Its totient is φ = 48958415329824.

The previous prime is 120123215540329. The next prime is 120123215540347. The reversal of 120123215540342 is 243045512321021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120123215540347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1078133498 + ... + 1078244909.

It is an arithmetic number, because the mean of its divisors is an integer number (6753777173856).

Almost surely, 2^{120123215540342} is an apocalyptic number.

120123215540342 is a deficient number, since it is larger than the sum of its proper divisors (95997654023050).

120123215540342 is a wasteful number, since it uses less digits than its factorization.

120123215540342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156378612.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 120123215540342 its reverse (243045512321021), we get a palindrome (363168727861363).

The spelling of 120123215540342 in words is "one hundred twenty trillion, one hundred twenty-three billion, two hundred fifteen million, five hundred forty thousand, three hundred forty-two".