1043771111040 has 512 divisors, whose sum is σ = 3945000960000. Its totient is φ = 229701795840.

The previous prime is 1043771111039. The next prime is 1043771111059. The reversal of 1043771111040 is 401111773401.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1043771110989 and 1043771111007.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 82905066 + ... + 82917654.

It is an arithmetic number, because the mean of its divisors is an integer number (7705080000).

Almost surely, 2^{1043771111040} is an apocalyptic number.

1043771111040 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 1043771111040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1972500480000).

1043771111040 is an abundant number, since it is smaller than the sum of its proper divisors (2901229848960).

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

1043771111040 is a wasteful number, since it uses less digits than its factorization.

1043771111040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12848 (or 12836 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 30.

Adding to 1043771111040 its reverse (401111773401), we get a palindrome (1444882884441).

The spelling of 1043771111040 in words is "one trillion, forty-three billion, seven hundred seventy-one million, one hundred eleven thousand, forty".