1101040323440 has 80 divisors (see below), whose sum is σ = 2564835840000. Its totient is φ = 439571010816.

The previous prime is 1101040323437. The next prime is 1101040323469. The reversal of 1101040323440 is 443230401011.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103485641 + ... + 103496279.

It is an arithmetic number, because the mean of its divisors is an integer number (32060448000).

Almost surely, 2^{1101040323440} is an apocalyptic number.

1101040323440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101040323440 is an abundant number, since it is smaller than the sum of its proper divisors (1463795516560).

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

1101040323440 is a wasteful number, since it uses less digits than its factorization.

1101040323440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13014 (or 13008 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1101040323440 its reverse (443230401011), we get a palindrome (1544270724451).

The spelling of 1101040323440 in words is "one trillion, one hundred one billion, forty million, three hundred twenty-three thousand, four hundred forty".