140421012219109 has 2 divisors, whose sum is σ = 140421012219110. Its totient is φ = 140421012219108.

The previous prime is 140421012219001. The next prime is 140421012219193. The reversal of 140421012219109 is 901912210124041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136173612729025 + 4247399490084 = 11669345^2 + 2060922^2 .

It is a cyclic number.

It is not a de Polignac number, because 140421012219109 - 2¹³ = 140421012210917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140421012289109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70210506109554 + 70210506109555.

It is an arithmetic number, because the mean of its divisors is an integer number (70210506109555).

Almost surely, 2^{140421012219109} is an apocalyptic number.

It is an amenable number.

140421012219109 is a deficient number, since it is larger than the sum of its proper divisors (1).

140421012219109 is an equidigital number, since it uses as much as digits as its factorization.

140421012219109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 140421012219109 in words is "one hundred forty trillion, four hundred twenty-one billion, twelve million, two hundred nineteen thousand, one hundred nine".