211012031969 has 2 divisors, whose sum is σ = 211012031970. Its totient is φ = 211012031968.

The previous prime is 211012031953. The next prime is 211012032017. The reversal of 211012031969 is 969130210112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209892259600 + 1119772369 = 458140^2 + 33463^2 .

It is a cyclic number.

It is not a de Polignac number, because 211012031969 - 2⁴ = 211012031953 is a prime.

It is a super-2 number, since 2×211012031969² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211012031669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105506015984 + 105506015985.

It is an arithmetic number, because the mean of its divisors is an integer number (105506015985).

Almost surely, 2^211012031969 is an apocalyptic number.

It is an amenable number.

211012031969 is a deficient number, since it is larger than the sum of its proper divisors (1).

211012031969 is an equidigital number, since it uses as much as digits as its factorization.

211012031969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 211012031969 in words is "two hundred eleven billion, twelve million, thirty-one thousand, nine hundred sixty-nine".