1233210019949 has 2 divisors, whose sum is σ = 1233210019950. Its totient is φ = 1233210019948.

The previous prime is 1233210019829. The next prime is 1233210019969. The reversal of 1233210019949 is 9499100123321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 977824322500 + 255385697449 = 988850^2 + 505357^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233210019949 - 2¹⁶ = 1233209954413 is a prime.

It is a super-2 number, since 2×1233210019949² (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 (1233210019969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616605009974 + 616605009975.

It is an arithmetic number, because the mean of its divisors is an integer number (616605009975).

Almost surely, 2^{1233210019949} is an apocalyptic number.

It is an amenable number.

1233210019949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233210019949 is an equidigital number, since it uses as much as digits as its factorization.

1233210019949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 1233210019949 in words is "one trillion, two hundred thirty-three billion, two hundred ten million, nineteen thousand, nine hundred forty-nine".