1011043231232 has 80 divisors (see below), whose sum is σ = 2086306936560. Its totient is φ = 489109413888.

The previous prime is 1011043231223. The next prime is 1011043231249. The reversal of 1011043231232 is 2321323401101.

It is a junction number, because it is equal to n+sod(n) for n = 1011043231198 and 1011043231207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3241898 + ... + 3540054.

It is an arithmetic number, because the mean of its divisors is an integer number (26078836707).

Almost surely, 2^{1011043231232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011043231232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1043153468280).

1011043231232 is an abundant number, since it is smaller than the sum of its proper divisors (1075263705328).

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

1011043231232 is an equidigital number, since it uses as much as digits as its factorization.

1011043231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298391 (or 298375 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1011043231232 its reverse (2321323401101), we get a palindrome (3332366632333).

The spelling of 1011043231232 in words is "one trillion, eleven billion, forty-three million, two hundred thirty-one thousand, two hundred thirty-two".