121312240403301 has 32 divisors (see below), whose sum is σ = 181175995392000. Its totient is φ = 80221492202544.

The previous prime is 121312240403287. The next prime is 121312240403303. The reversal of 121312240403301 is 103304042213121.

121312240403301 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 1 + 224 + 0 + 403 + 30 + 1 = 666.

It is not a de Polignac number, because 121312240403301 - 2¹³ = 121312240395109 is a prime.

It is a super-2 number, since 2×121312240403301² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121312240403303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10177221 + ... + 18606458.

It is an arithmetic number, because the mean of its divisors is an integer number (5661749856000).

Almost surely, 2^{121312240403301} is an apocalyptic number.

It is an amenable number.

121312240403301 is a deficient number, since it is larger than the sum of its proper divisors (59863754988699).

121312240403301 is a wasteful number, since it uses less digits than its factorization.

121312240403301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28784950 (or 28784944 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 121312240403301 its reverse (103304042213121), we get a palindrome (224616282616422).

The spelling of 121312240403301 in words is "one hundred twenty-one trillion, three hundred twelve billion, two hundred forty million, four hundred three thousand, three hundred one".