11012609421861 has 16 divisors (see below), whose sum is σ = 14996093952000. Its totient is φ = 7185436425648.

The previous prime is 11012609421829. The next prime is 11012609421887. The reversal of 11012609421861 is 16812490621011.

It is not a de Polignac number, because 11012609421861 - 2⁵ = 11012609421829 is a prime.

It is a super-3 number, since 3×11012609421861³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012609491861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10968120 + ... + 11929998.

It is an arithmetic number, because the mean of its divisors is an integer number (937255872000).

Almost surely, 2^{11012609421861} is an apocalyptic number.

It is an amenable number.

11012609421861 is a deficient number, since it is larger than the sum of its proper divisors (3983484530139).

11012609421861 is an equidigital number, since it uses as much as digits as its factorization.

11012609421861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043128.

The product of its (nonzero) digits is 41472, while the sum is 42.

The spelling of 11012609421861 in words is "eleven trillion, twelve billion, six hundred nine million, four hundred twenty-one thousand, eight hundred sixty-one".