1354345312421 has 4 divisors (see below), whose sum is σ = 1354348481952. Its totient is φ = 1354342142892.

The previous prime is 1354345312409. The next prime is 1354345312499. The reversal of 1354345312421 is 1242135434531.

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 a cyclic number.

It is not a de Polignac number, because 1354345312421 - 2¹⁴ = 1354345296037 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 (1354345311421) 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, 821171 + ... + 1839296.

It is an arithmetic number, because the mean of its divisors is an integer number (338587120488).

Almost surely, 2^{1354345312421} is an apocalyptic number.

It is an amenable number.

1354345312421 is a deficient number, since it is larger than the sum of its proper divisors (3169531).

1354345312421 is an equidigital number, since it uses as much as digits as its factorization.

1354345312421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169530.

The product of its digits is 172800, while the sum is 38.

The spelling of 1354345312421 in words is "one trillion, three hundred fifty-four billion, three hundred forty-five million, three hundred twelve thousand, four hundred twenty-one".