20837142094147 has 2 divisors, whose sum is σ = 20837142094148. Its totient is φ = 20837142094146.

The previous prime is 20837142094123. The next prime is 20837142094157. The reversal of 20837142094147 is 74149024173802.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20837142094147 - 2³¹ = 20834994610499 is a prime.

It is a super-2 number, since 2×20837142094147² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20837142094094 and 20837142094103.

It is not a weakly prime, because it can be changed into another prime (20837142094157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10418571047073 + 10418571047074.

It is an arithmetic number, because the mean of its divisors is an integer number (10418571047074).

Almost surely, 2^{20837142094147} is an apocalyptic number.

20837142094147 is a deficient number, since it is larger than the sum of its proper divisors (1).

20837142094147 is an equidigital number, since it uses as much as digits as its factorization.

20837142094147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 20837142094147 in words is "twenty trillion, eight hundred thirty-seven billion, one hundred forty-two million, ninety-four thousand, one hundred forty-seven".