1213421603001 has 8 divisors (see below), whose sum is σ = 1713065792544. Its totient is φ = 761362574400.

The previous prime is 1213421602969. The next prime is 1213421603011. The reversal of 1213421603001 is 1003061243121.

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 1213421603001 - 2⁵ = 1213421602969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213421603011) 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, 11896290175 + ... + 11896290276.

It is an arithmetic number, because the mean of its divisors is an integer number (214133224068).

Almost surely, 2^{1213421603001} is an apocalyptic number.

It is an amenable number.

1213421603001 is a deficient number, since it is larger than the sum of its proper divisors (499644189543).

1213421603001 is a wasteful number, since it uses less digits than its factorization.

1213421603001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23792580471.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1213421603001 its reverse (1003061243121), we get a palindrome (2216482846122).

The spelling of 1213421603001 in words is "one trillion, two hundred thirteen billion, four hundred twenty-one million, six hundred three thousand, one".