1231415340421 has 8 divisors (see below), whose sum is σ = 1407390577920. Its totient is φ = 1055454793008.

The previous prime is 1231415340409. The next prime is 1231415340427. The reversal of 1231415340421 is 1240435141321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1231415340421 - 2⁷ = 1231415340293 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 (1231415340427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3492301 + ... + 3828706.

It is an arithmetic number, because the mean of its divisors is an integer number (175923822240).

Almost surely, 2^{1231415340421} is an apocalyptic number.

It is an amenable number.

1231415340421 is a deficient number, since it is larger than the sum of its proper divisors (175975237499).

1231415340421 is an equidigital number, since it uses as much as digits as its factorization.

1231415340421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7345043.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 1231415340421 in words is "one trillion, two hundred thirty-one billion, four hundred fifteen million, three hundred forty thousand, four hundred twenty-one".