121326512463 has 24 divisors (see below), whose sum is σ = 190400329392. Its totient is φ = 74001731328.

The previous prime is 121326512431. The next prime is 121326512467. The reversal of 121326512463 is 364215623121.

121326512463 is a `hidden beast` number, since 1 + 2 + 132 + 6 + 512 + 4 + 6 + 3 = 666.

It is not a de Polignac number, because 121326512463 - 2⁵ = 121326512431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121326512467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4575181 + ... + 4601622.

It is an arithmetic number, because the mean of its divisors is an integer number (7933347058).

Almost surely, 2^121326512463 is an apocalyptic number.

121326512463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121326512463 is a deficient number, since it is larger than the sum of its proper divisors (69073816929).

121326512463 is a wasteful number, since it uses less digits than its factorization.

121326512463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9176935 (or 9176932 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The spelling of 121326512463 in words is "one hundred twenty-one billion, three hundred twenty-six million, five hundred twelve thousand, four hundred sixty-three".