1101032012921 has 2 divisors, whose sum is σ = 1101032012922. Its totient is φ = 1101032012920.

The previous prime is 1101032012887. The next prime is 1101032012963. The reversal of 1101032012921 is 1292102301011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 950615250025 + 150416762896 = 974995^2 + 387836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101032012921 is a prime.

It is a super-2 number, since 2×1101032012921² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1101032912921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550516006460 + 550516006461.

It is an arithmetic number, because the mean of its divisors is an integer number (550516006461).

Almost surely, 2^{1101032012921} is an apocalyptic number.

It is an amenable number.

1101032012921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101032012921 is an equidigital number, since it uses as much as digits as its factorization.

1101032012921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 1101032012921 its reverse (1292102301011), we get a palindrome (2393134313932).

The spelling of 1101032012921 in words is "one trillion, one hundred one billion, thirty-two million, twelve thousand, nine hundred twenty-one".