1101021121331 has 4 divisors (see below), whose sum is σ = 1127875295064. Its totient is φ = 1074166947600.

The previous prime is 1101021121309. The next prime is 1101021121363. The reversal of 1101021121331 is 1331211201011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1101021121331 - 2³⁸ = 826143214387 is a prime.

It is a super-2 number, since 2×1101021121331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101021121381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13427086805 + ... + 13427086886.

It is an arithmetic number, because the mean of its divisors is an integer number (281968823766).

Almost surely, 2^{1101021121331} is an apocalyptic number.

1101021121331 is a deficient number, since it is larger than the sum of its proper divisors (26854173733).

1101021121331 is an equidigital number, since it uses as much as digits as its factorization.

1101021121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26854173732.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1101021121331 its reverse (1331211201011), we get a palindrome (2432232322342).

The spelling of 1101021121331 in words is "one trillion, one hundred one billion, twenty-one million, one hundred twenty-one thousand, three hundred thirty-one".