1210420234461 has 4 divisors (see below), whose sum is σ = 1613893645952. Its totient is φ = 806946822972.

The previous prime is 1210420234433. The next prime is 1210420234481. The reversal of 1210420234461 is 1644320240121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1210420234461 - 2⁷ = 1210420234333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210420234421) 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, 201736705741 + ... + 201736705746.

It is an arithmetic number, because the mean of its divisors is an integer number (403473411488).

Almost surely, 2^{1210420234461} is an apocalyptic number.

It is an amenable number.

1210420234461 is a deficient number, since it is larger than the sum of its proper divisors (403473411491).

1210420234461 is an equidigital number, since it uses as much as digits as its factorization.

1210420234461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403473411490.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 1210420234461 its reverse (1644320240121), we get a palindrome (2854740474582).

The spelling of 1210420234461 in words is "one trillion, two hundred ten billion, four hundred twenty million, two hundred thirty-four thousand, four hundred sixty-one".