1012020111104 has 72 divisors (see below), whose sum is σ = 2070015565968. Its totient is φ = 493511352320.

The previous prime is 1012020111043. The next prime is 1012020111127. The reversal of 1012020111104 is 4011110202101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37320719 + ... + 37347825.

It is an arithmetic number, because the mean of its divisors is an integer number (28750216194).

Almost surely, 2^{1012020111104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012020111104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1035007782984).

1012020111104 is an abundant number, since it is smaller than the sum of its proper divisors (1057995454864).

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

1012020111104 is an equidigital number, since it uses as much as digits as its factorization.

1012020111104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30721 (or 30707 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1012020111104 its reverse (4011110202101), we get a palindrome (5023130313205).

The spelling of 1012020111104 in words is "one trillion, twelve billion, twenty million, one hundred eleven thousand, one hundred four".