1343521102621 has 8 divisors (see below), whose sum is σ = 1376338268088. Its totient is φ = 1310706240000.

The previous prime is 1343521102603. The next prime is 1343521102633. The reversal of 1343521102621 is 1262011253431.

It can be written as a sum of positive squares in 4 ways, for example, as 1199583225 + 1342321519396 = 34635^2 + 1158586^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1343521102621 - 2⁵ = 1343521102589 is a prime.

It is a super-2 number, since 2×1343521102621² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343521102421) 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, 636151 + ... + 1758331.

It is an arithmetic number, because the mean of its divisors is an integer number (172042283511).

Almost surely, 2^{1343521102621} is an apocalyptic number.

It is an amenable number.

1343521102621 is a deficient number, since it is larger than the sum of its proper divisors (32817165467).

1343521102621 is a wasteful number, since it uses less digits than its factorization.

1343521102621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151423.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 1343521102621 in words is "one trillion, three hundred forty-three billion, five hundred twenty-one million, one hundred two thousand, six hundred twenty-one".