11860121020 has 48 divisors (see below), whose sum is σ = 27308479968. Its totient is φ = 4290863360.

The previous prime is 11860121017. The next prime is 11860121069. The reversal of 11860121020 is 2012106811.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 11860120982 and 11860121000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93487 + ... + 180166.

It is an arithmetic number, because the mean of its divisors is an integer number (568926666).

Almost surely, 2^11860121020 is an apocalyptic number.

11860121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11860121020 is an abundant number, since it is smaller than the sum of its proper divisors (15448358948).

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

11860121020 is a wasteful number, since it uses less digits than its factorization.

11860121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273870 (or 273868 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 11860121020 its reverse (2012106811), we get a palindrome (13872227831).

The spelling of 11860121020 in words is "eleven billion, eight hundred sixty million, one hundred twenty-one thousand, twenty".