15235130342421 has 36 divisors (see below), whose sum is σ = 24169076830080. Its totient is φ = 9171441795360.

The previous prime is 15235130342339. The next prime is 15235130342473. The reversal of 15235130342421 is 12424303153251.

15235130342421 is a `hidden beast` number, since 1 + 5 + 2 + 351 + 30 + 34 + 242 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-15235130342421 is a prime.

It is a super-3 number, since 3×15235130342421³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15235130392421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1267941 + ... + 5663738.

It is an arithmetic number, because the mean of its divisors is an integer number (671363245280).

Almost surely, 2^{15235130342421} is an apocalyptic number.

15235130342421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15235130342421 is a deficient number, since it is larger than the sum of its proper divisors (8933946487659).

15235130342421 is a wasteful number, since it uses less digits than its factorization.

15235130342421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6931994 (or 6931842 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 15235130342421 its reverse (12424303153251), we get a palindrome (27659433495672).

It can be divided in two parts, 15235130 and 342421, that added together give a palindrome (15577551).

The spelling of 15235130342421 in words is "fifteen trillion, two hundred thirty-five billion, one hundred thirty million, three hundred forty-two thousand, four hundred twenty-one".