123141540115 has 32 divisors (see below), whose sum is σ = 168953734656. Its totient is φ = 85286108160.

The previous prime is 123141540103. The next prime is 123141540127. The reversal of 123141540115 is 511045141321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123141540103) and next prime (123141540127).

It is not a de Polignac number, because 123141540115 - 2⁷ = 123141539987 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72739 + ... + 501571.

It is an arithmetic number, because the mean of its divisors is an integer number (5279804208).

Almost surely, 2^123141540115 is an apocalyptic number.

123141540115 is a deficient number, since it is larger than the sum of its proper divisors (45812194541).

123141540115 is a wasteful number, since it uses less digits than its factorization.

123141540115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429099.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 123141540115 its reverse (511045141321), we get a palindrome (634186681436).

The spelling of 123141540115 in words is "one hundred twenty-three billion, one hundred forty-one million, five hundred forty thousand, one hundred fifteen".