15151243121 has 16 divisors (see below), whose sum is σ = 17519414400. Its totient is φ = 12834581760.

The previous prime is 15151243069. The next prime is 15151243127. The reversal of 15151243121 is 12134215151.

It is not a de Polignac number, because 15151243121 - 2¹⁴ = 15151226737 is a prime.

It is a super-2 number, since 2×15151243121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15151243127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291305 + ... + 339353.

It is an arithmetic number, because the mean of its divisors is an integer number (1094963400).

Almost surely, 2^15151243121 is an apocalyptic number.

It is an amenable number.

15151243121 is a deficient number, since it is larger than the sum of its proper divisors (2368171279).

15151243121 is a wasteful number, since it uses less digits than its factorization.

15151243121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48584.

The product of its digits is 1200, while the sum is 26.

Adding to 15151243121 its reverse (12134215151), we get a palindrome (27285458272).

The spelling of 15151243121 in words is "fifteen billion, one hundred fifty-one million, two hundred forty-three thousand, one hundred twenty-one".