1240345505130 has 32 divisors (see below), whose sum is σ = 3057284058624. Its totient is φ = 321819374016.

The previous prime is 1240345505129. The next prime is 1240345505153. The reversal of 1240345505130 is 315055430421.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1240345505091 and 1240345505100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558713082 + ... + 558715301.

It is an arithmetic number, because the mean of its divisors is an integer number (95540126832).

Almost surely, 2^{1240345505130} is an apocalyptic number.

1240345505130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1240345505130 is an abundant number, since it is smaller than the sum of its proper divisors (1816938553494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240345505130 is a wasteful number, since it uses less digits than its factorization.

1240345505130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117428430.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 1240345505130 in words is "one trillion, two hundred forty billion, three hundred forty-five million, five hundred five thousand, one hundred thirty".