1210426234009 has 4 divisors (see below), whose sum is σ = 1281627777204. Its totient is φ = 1139224690816.

The previous prime is 1210426234001. The next prime is 1210426234033. The reversal of 1210426234009 is 9004326240121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1036038979600 + 174387254409 = 1017860^2 + 417597^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210426234009 - 2³ = 1210426234001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210426234001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35600771572 + ... + 35600771605.

It is an arithmetic number, because the mean of its divisors is an integer number (320406944301).

Almost surely, 2^{1210426234009} is an apocalyptic number.

It is an amenable number.

1210426234009 is a deficient number, since it is larger than the sum of its proper divisors (71201543195).

1210426234009 is an equidigital number, since it uses as much as digits as its factorization.

1210426234009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71201543194.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 1210426234009 in words is "one trillion, two hundred ten billion, four hundred twenty-six million, two hundred thirty-four thousand, nine".