2021101342427 has 2 divisors, whose sum is σ = 2021101342428. Its totient is φ = 2021101342426.

The previous prime is 2021101342423. The next prime is 2021101342483. The reversal of 2021101342427 is 7242431011202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021101342427 - 2² = 2021101342423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021101342427.

It is not a weakly prime, because it can be changed into another prime (2021101342423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010550671213 + 1010550671214.

It is an arithmetic number, because the mean of its divisors is an integer number (1010550671214).

Almost surely, 2^{2021101342427} is an apocalyptic number.

2021101342427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021101342427 is an equidigital number, since it uses as much as digits as its factorization.

2021101342427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 2021101342427 its reverse (7242431011202), we get a palindrome (9263532353629).

The spelling of 2021101342427 in words is "two trillion, twenty-one billion, one hundred one million, three hundred forty-two thousand, four hundred twenty-seven".