1215550141431 has 8 divisors (see below), whose sum is σ = 1620743266800. Its totient is φ = 810361888512.

The previous prime is 1215550141411. The next prime is 1215550141447. The reversal of 1215550141431 is 1341410555121.

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

It is not a de Polignac number, because 1215550141431 - 2⁷ = 1215550141303 is a prime.

It is a super-2 number, since 2×1215550141431² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1215550141392 and 1215550141401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215550141411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589690 + ... + 1666983.

It is an arithmetic number, because the mean of its divisors is an integer number (202592908350).

Almost surely, 2^{1215550141431} is an apocalyptic number.

1215550141431 is a deficient number, since it is larger than the sum of its proper divisors (405193125369).

1215550141431 is a wasteful number, since it uses less digits than its factorization.

1215550141431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436225.

The product of its (nonzero) digits is 12000, while the sum is 33.

Adding to 1215550141431 its reverse (1341410555121), we get a palindrome (2556960696552).

The spelling of 1215550141431 in words is "one trillion, two hundred fifteen billion, five hundred fifty million, one hundred forty-one thousand, four hundred thirty-one".