115211502123403 has 16 divisors (see below), whose sum is σ = 131834319851520. Its totient is φ = 98629765299936.

The previous prime is 115211502123401. The next prime is 115211502123413. The reversal of 115211502123403 is 304321205112511.

It is a cyclic number.

It is not a de Polignac number, because 115211502123403 - 2¹ = 115211502123401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115211502123401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15916326 + ... + 21994372.

It is an arithmetic number, because the mean of its divisors is an integer number (8239644990720).

Almost surely, 2^{115211502123403} is an apocalyptic number.

115211502123403 is a deficient number, since it is larger than the sum of its proper divisors (16622817728117).

115211502123403 is a wasteful number, since it uses less digits than its factorization.

115211502123403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081426.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 115211502123403 its reverse (304321205112511), we get a palindrome (419532707235914).

The spelling of 115211502123403 in words is "one hundred fifteen trillion, two hundred eleven billion, five hundred two million, one hundred twenty-three thousand, four hundred three".