13121642042430 has 64 divisors (see below), whose sum is σ = 31610297668608. Its totient is φ = 3485955553920.

The previous prime is 13121642042423. The next prime is 13121642042437. The reversal of 13121642042430 is 3424024612131.

It is an interprime number because it is at equal distance from previous prime (13121642042423) and next prime (13121642042437).

It is a junction number, because it is equal to n+sod(n) for n = 13121642042391 and 13121642042400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121642042437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142090632 + ... + 142182948.

It is an arithmetic number, because the mean of its divisors is an integer number (493910901072).

Almost surely, 2^{13121642042430} is an apocalyptic number.

13121642042430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121642042430 is an abundant number, since it is smaller than the sum of its proper divisors (18488655626178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13121642042430 is a wasteful number, since it uses less digits than its factorization.

13121642042430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110081.

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 13121642042430 its reverse (3424024612131), we get a palindrome (16545666654561).

The spelling of 13121642042430 in words is "thirteen trillion, one hundred twenty-one billion, six hundred forty-two million, forty-two thousand, four hundred thirty".