115154404212321 has 12 divisors (see below), whose sum is σ = 167643857052672. Its totient is φ = 76165117745976.

The previous prime is 115154404212319. The next prime is 115154404212347. The reversal of 115154404212321 is 123212404451511.

115154404212321 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 5 + 4 + 404 + 212 + 32 + 1 = 666.

It is not a de Polignac number, because 115154404212321 - 2¹ = 115154404212319 is a prime.

It is a super-2 number, since 2×115154404212321² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115154404212301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50373753981 + ... + 50373756266.

It is an arithmetic number, because the mean of its divisors is an integer number (13970321421056).

Almost surely, 2^{115154404212321} is an apocalyptic number.

It is an amenable number.

115154404212321 is a deficient number, since it is larger than the sum of its proper divisors (52489452840351).

115154404212321 is a wasteful number, since it uses less digits than its factorization.

115154404212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100747510380 (or 100747510377 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

Adding to 115154404212321 its reverse (123212404451511), we get a palindrome (238366808663832).

The spelling of 115154404212321 in words is "one hundred fifteen trillion, one hundred fifty-four billion, four hundred four million, two hundred twelve thousand, three hundred twenty-one".