2115411231501 has 6 divisors (see below), whose sum is σ = 3055594001070. Its totient is φ = 1410274154328.

The previous prime is 2115411231421. The next prime is 2115411231553. The reversal of 2115411231501 is 1051321145112.

2115411231501 is a `hidden beast` number, since 2 + 1 + 15 + 4 + 112 + 31 + 501 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1666074285225 + 449336946276 = 1290765^2 + 670326^2 .

It is not a de Polignac number, because 2115411231501 - 2¹⁴ = 2115411215117 is a prime.

It is a super-3 number, since 3×2115411231501³ (a number of 38 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115411221501) 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 5 ways as a sum of consecutive naturals, for example, 117522846186 + ... + 117522846203.

It is an arithmetic number, because the mean of its divisors is an integer number (509265666845).

Almost surely, 2^{2115411231501} is an apocalyptic number.

It is an amenable number.

2115411231501 is a deficient number, since it is larger than the sum of its proper divisors (940182769569).

2115411231501 is a wasteful number, since it uses less digits than its factorization.

2115411231501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235045692395 (or 235045692392 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

Adding to 2115411231501 its reverse (1051321145112), we get a palindrome (3166732376613).

The spelling of 2115411231501 in words is "two trillion, one hundred fifteen billion, four hundred eleven million, two hundred thirty-one thousand, five hundred one".