1240430420123 has 8 divisors (see below), whose sum is σ = 1250473027440. Its totient is φ = 1230403793760.

The previous prime is 1240430420107. The next prime is 1240430420129. The reversal of 1240430420123 is 3210240340421.

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

It is a cyclic number.

It is not a de Polignac number, because 1240430420123 - 2⁴ = 1240430420107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240430420092 and 1240430420101.

It is not an unprimeable number, because it can be changed into a prime (1240430420129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3839348 + ... + 4149873.

It is an arithmetic number, because the mean of its divisors is an integer number (156309128430).

Almost surely, 2^{1240430420123} is an apocalyptic number.

1240430420123 is a deficient number, since it is larger than the sum of its proper divisors (10042607317).

1240430420123 is a wasteful number, since it uses less digits than its factorization.

1240430420123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7990477.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1240430420123 its reverse (3210240340421), we get a palindrome (4450670760544).

The spelling of 1240430420123 in words is "one trillion, two hundred forty billion, four hundred thirty million, four hundred twenty thousand, one hundred twenty-three".