3423401331621 has 8 divisors (see below), whose sum is σ = 4632662498784. Its totient is φ = 2248203859440.

The previous prime is 3423401331617. The next prime is 3423401331641. The reversal of 3423401331621 is 1261331043243.

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

It is not a de Polignac number, because 3423401331621 - 2² = 3423401331617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3423401331641) 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, 8515923510 + ... + 8515923911.

It is an arithmetic number, because the mean of its divisors is an integer number (579082812348).

Almost surely, 2^{3423401331621} is an apocalyptic number.

It is an amenable number.

3423401331621 is a deficient number, since it is larger than the sum of its proper divisors (1209261167163).

3423401331621 is a wasteful number, since it uses less digits than its factorization.

3423401331621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17031847491.

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 3423401331621 its reverse (1261331043243), we get a palindrome (4684732374864).

The spelling of 3423401331621 in words is "three trillion, four hundred twenty-three billion, four hundred one million, three hundred thirty-one thousand, six hundred twenty-one".