1234040430123 has 36 divisors (see below), whose sum is σ = 1800601564632. Its totient is φ = 814422712320.

The previous prime is 1234040430107. The next prime is 1234040430127. The reversal of 1234040430123 is 3210340404321.

1234040430123 is a `hidden beast` number, since 1 + 234 + 0 + 404 + 3 + 0 + 1 + 23 = 666.

It is not a de Polignac number, because 1234040430123 - 2⁴ = 1234040430107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1234040430127) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 101469163 + ... + 101481323.

Almost surely, 2^{1234040430123} is an apocalyptic number.

1234040430123 is a deficient number, since it is larger than the sum of its proper divisors (566561134509).

1234040430123 is a wasteful number, since it uses less digits than its factorization.

1234040430123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13276 (or 13160 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1234040430123 its reverse (3210340404321), we get a palindrome (4444380834444).

The spelling of 1234040430123 in words is "one trillion, two hundred thirty-four billion, forty million, four hundred thirty thousand, one hundred twenty-three".