1020111102010 has 128 divisors (see below), whose sum is σ = 2466362400768. Its totient is φ = 293382432000.

The previous prime is 1020111101969. The next prime is 1020111102011. The reversal of 1020111102010 is 102011110201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1020111102011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27118315 + ... + 27155905.

It is an arithmetic number, because the mean of its divisors is an integer number (19268456256).

Almost surely, 2^{1020111102010} is an apocalyptic number.

1020111102010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020111102010 is an abundant number, since it is smaller than the sum of its proper divisors (1446251298758).

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

1020111102010 is a wasteful number, since it uses less digits than its factorization.

1020111102010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40340.

The product of its (nonzero) digits is 4, while the sum is 10.

1020111102010 divided by its sum of digits (10) gives a palindrome (102011110201).

Adding to 1020111102010 its reverse (102011110201), we get a palindrome (1122122212211).

It can be divided in two parts, 102011 and 1102010, that added together give a palindrome (1204021).

The spelling of 1020111102010 in words is "one trillion, twenty billion, one hundred eleven million, one hundred two thousand, ten".