40421201422123 has 2 divisors, whose sum is σ = 40421201422124. Its totient is φ = 40421201422122.

The previous prime is 40421201422117. The next prime is 40421201422141. The reversal of 40421201422123 is 32122410212404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40421201422123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40421201422091 and 40421201422100.

It is not a weakly prime, because it can be changed into another prime (40421201422153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20210600711061 + 20210600711062.

It is an arithmetic number, because the mean of its divisors is an integer number (20210600711062).

Almost surely, 2^{40421201422123} is an apocalyptic number.

40421201422123 is a deficient number, since it is larger than the sum of its proper divisors (1).

40421201422123 is an equidigital number, since it uses as much as digits as its factorization.

40421201422123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 40421201422123 its reverse (32122410212404), we get a palindrome (72543611634527).

The spelling of 40421201422123 in words is "forty trillion, four hundred twenty-one billion, two hundred one million, four hundred twenty-two thousand, one hundred twenty-three".