1102311231021 has 192 divisors, whose sum is σ = 2249173495296. Its totient is φ = 501744844800.

The previous prime is 1102311230981. The next prime is 1102311231053. The reversal of 1102311231021 is 1201321132011.

1102311231021 is a `hidden beast` number, since 1 + 102 + 311 + 231 + 0 + 21 = 666.

It is not a de Polignac number, because 1102311231021 - 2¹⁰ = 1102311229997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1102311230985 and 1102311231003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102311231121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 13626325 + ... + 13706981.

It is an arithmetic number, because the mean of its divisors is an integer number (11714445288).

Almost surely, 2^{1102311231021} is an apocalyptic number.

1102311231021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1102311231021 is an abundant number, since it is smaller than the sum of its proper divisors (1146862264275).

1102311231021 is a wasteful number, since it uses less digits than its factorization.

1102311231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80772 (or 80769 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1102311231021 its reverse (1201321132011), we get a palindrome (2303632363032).

The spelling of 1102311231021 in words is "one trillion, one hundred two billion, three hundred eleven million, two hundred thirty-one thousand, twenty-one".