1011211032104 has 128 divisors (see below), whose sum is σ = 2453616506880. Its totient is φ = 379724716800.

The previous prime is 1011211031993. The next prime is 1011211032109. The reversal of 1011211032104 is 4012301121101.

It is a super-3 number, since 3×1011211032104³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1011211032109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1962959 + ... + 2423969.

It is an arithmetic number, because the mean of its divisors is an integer number (19168878960).

Almost surely, 2^{1011211032104} is an apocalyptic number.

1011211032104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011211032104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1226808253440).

1011211032104 is an abundant number, since it is smaller than the sum of its proper divisors (1442405474776).

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

1011211032104 is a wasteful number, since it uses less digits than its factorization.

1011211032104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461191 (or 461187 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1011211032104 its reverse (4012301121101), we get a palindrome (5023512153205).

The spelling of 1011211032104 in words is "one trillion, eleven billion, two hundred eleven million, thirty-two thousand, one hundred four".