1011201001969 has 2 divisors, whose sum is σ = 1011201001970. Its totient is φ = 1011201001968.

The previous prime is 1011201001913. The next prime is 1011201002003. The reversal of 1011201001969 is 9691001021101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 699096654400 + 312104347569 = 836120^2 + 558663^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011201001969 - 2²¹ = 1011198904817 is a prime.

It is a super-2 number, since 2×1011201001969² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1011201001969.

It is not a weakly prime, because it can be changed into another prime (1011201007969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505600500984 + 505600500985.

It is an arithmetic number, because the mean of its divisors is an integer number (505600500985).

Almost surely, 2^{1011201001969} is an apocalyptic number.

It is an amenable number.

1011201001969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011201001969 is an equidigital number, since it uses as much as digits as its factorization.

1011201001969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 31.

The spelling of 1011201001969 in words is "one trillion, eleven billion, two hundred one million, one thousand, nine hundred sixty-nine".