1001201970919 has 2 divisors, whose sum is σ = 1001201970920. Its totient is φ = 1001201970918.

The previous prime is 1001201970913. The next prime is 1001201970949. The reversal of 1001201970919 is 9190791021001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001201970919 - 2⁹ = 1001201970407 is a prime.

It is a super-2 number, since 2×1001201970919² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001201970913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500600985459 + 500600985460.

It is an arithmetic number, because the mean of its divisors is an integer number (500600985460).

Almost surely, 2^{1001201970919} is an apocalyptic number.

1001201970919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001201970919 is an equidigital number, since it uses as much as digits as its factorization.

1001201970919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 40.

The spelling of 1001201970919 in words is "one trillion, one billion, two hundred one million, nine hundred seventy thousand, nine hundred nineteen".