1103521331240 has 32 divisors (see below), whose sum is σ = 2492584197480. Its totient is φ = 439690985472.

The previous prime is 1103521331167. The next prime is 1103521331303. The reversal of 1103521331240 is 421331253011.

It can be written as a sum of positive squares in 4 ways, for example, as 1025565340804 + 77955990436 = 1012702^2 + 279206^2 .

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, 53662937 + ... + 53683496.

Almost surely, 2^{1103521331240} is an apocalyptic number.

1103521331240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103521331240 is an abundant number, since it is smaller than the sum of its proper divisors (1389062866240).

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

1103521331240 is a wasteful number, since it uses less digits than its factorization.

1103521331240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107346701 (or 107346697 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 1103521331240 its reverse (421331253011), we get a palindrome (1524852584251).

The spelling of 1103521331240 in words is "one trillion, one hundred three billion, five hundred twenty-one million, three hundred thirty-one thousand, two hundred forty".