1013099943240 has 512 divisors, whose sum is σ = 4217301504000. Its totient is φ = 210163507200.

The previous prime is 1013099943221. The next prime is 1013099943241. The reversal of 1013099943240 is 423499903101.

1013099943240 is a `hidden beast` number, since 10 + 1 + 309 + 9 + 9 + 4 + 324 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1013099943241) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 51466200 + ... + 51485880.

It is an arithmetic number, because the mean of its divisors is an integer number (8236917000).

Almost surely, 2^{1013099943240} is an apocalyptic number.

1013099943240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1013099943240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2108650752000).

1013099943240 is an abundant number, since it is smaller than the sum of its proper divisors (3204201560760).

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

1013099943240 is a wasteful number, since it uses less digits than its factorization.

1013099943240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20338 (or 20328 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 1013099943240 in words is "one trillion, thirteen billion, ninety-nine million, nine hundred forty-three thousand, two hundred forty".