11720862842051 has 16 divisors (see below), whose sum is σ = 12913313587200. Its totient is φ = 10549570284000.

The previous prime is 11720862842011. The next prime is 11720862842053. The reversal of 11720862842051 is 15024826802711.

It is not a de Polignac number, because 11720862842051 - 2¹⁰ = 11720862841027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11720862841987 and 11720862842005.

It is not an unprimeable number, because it can be changed into a prime (11720862842053) 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, 55354340 + ... + 55565678.

It is an arithmetic number, because the mean of its divisors is an integer number (807082099200).

Almost surely, 2^{11720862842051} is an apocalyptic number.

11720862842051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11720862842051 is a deficient number, since it is larger than the sum of its proper divisors (1192450745149).

11720862842051 is a wasteful number, since it uses less digits than its factorization.

11720862842051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261370.

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 11720862842051 in words is "eleven trillion, seven hundred twenty billion, eight hundred sixty-two million, eight hundred forty-two thousand, fifty-one".