1023909849211 has 2 divisors, whose sum is σ = 1023909849212. Its totient is φ = 1023909849210.

The previous prime is 1023909849199. The next prime is 1023909849223. The reversal of 1023909849211 is 1129489093201.

It is a balanced prime because it is at equal distance from previous prime (1023909849199) and next prime (1023909849223).

It is a cyclic number.

It is not a de Polignac number, because 1023909849211 - 2³¹ = 1021762365563 is a prime.

It is a super-2 number, since 2×1023909849211² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1023909847211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511954924605 + 511954924606.

It is an arithmetic number, because the mean of its divisors is an integer number (511954924606).

Almost surely, 2^{1023909849211} is an apocalyptic number.

1023909849211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023909849211 is an equidigital number, since it uses as much as digits as its factorization.

1023909849211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 49.

The spelling of 1023909849211 in words is "one trillion, twenty-three billion, nine hundred nine million, eight hundred forty-nine thousand, two hundred eleven".