11112019999987 has 2 divisors, whose sum is σ = 11112019999988. Its totient is φ = 11112019999986.

The previous prime is 11112019999979. The next prime is 11112020000017. The reversal of 11112019999987 is 78999991021111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11112019999987 - 2³ = 11112019999979 is a prime.

It is a super-2 number, since 2×11112019999987² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11112019909987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556009999993 + 5556009999994.

It is an arithmetic number, because the mean of its divisors is an integer number (5556009999994).

Almost surely, 2^{11112019999987} is an apocalyptic number.

11112019999987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112019999987 is an equidigital number, since it uses as much as digits as its factorization.

11112019999987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6613488, while the sum is 67.

The spelling of 11112019999987 in words is "eleven trillion, one hundred twelve billion, nineteen million, nine hundred ninety-nine thousand, nine hundred eighty-seven".