1013201023044 has 48 divisors (see below), whose sum is σ = 2703494463488. Its totient is φ = 289311892128.

The previous prime is 1013201023031. The next prime is 1013201023049. The reversal of 1013201023044 is 4403201023101.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1013201023044.

It is not an unprimeable number, because it can be changed into a prime (1013201023049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3486862 + ... + 3766245.

Almost surely, 2^{1013201023044} is an apocalyptic number.

1013201023044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1013201023044 is an abundant number, since it is smaller than the sum of its proper divisors (1690293440444).

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

1013201023044 is a wasteful number, since it uses less digits than its factorization.

1013201023044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7254784 (or 7254782 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1013201023044 its reverse (4403201023101), we get a palindrome (5416402046145).

The spelling of 1013201023044 in words is "one trillion, thirteen billion, two hundred one million, twenty-three thousand, forty-four".