1103020311021 has 16 divisors (see below), whose sum is σ = 1534787702784. Its totient is φ = 703306177904.

The previous prime is 1103020311017. The next prime is 1103020311037. The reversal of 1103020311021 is 1201130203011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1103020311021 - 2² = 1103020311017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103020311011) 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, 72981 + ... + 1487066.

It is an arithmetic number, because the mean of its divisors is an integer number (95924231424).

Almost surely, 2^{1103020311021} is an apocalyptic number.

It is an amenable number.

1103020311021 is a deficient number, since it is larger than the sum of its proper divisors (431767391763).

1103020311021 is a wasteful number, since it uses less digits than its factorization.

1103020311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570320.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1103020311021 its reverse (1201130203011), we get a palindrome (2304150514032).

The spelling of 1103020311021 in words is "one trillion, one hundred three billion, twenty million, three hundred eleven thousand, twenty-one".