133121323113001 has 4 divisors (see below), whose sum is σ = 133147156869972. Its totient is φ = 133095489356032.

The previous prime is 133121323112977. The next prime is 133121323113101. The reversal of 133121323113001 is 100311323121331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98324596847376 + 34796726265625 = 9915876^2 + 5898875^2 .

It is a cyclic number.

It is not a de Polignac number, because 133121323113001 - 2¹⁷ = 133121322981929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133121323113101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12916870756 + ... + 12916881061.

It is an arithmetic number, because the mean of its divisors is an integer number (33286789217493).

Almost surely, 2^{133121323113001} is an apocalyptic number.

It is an amenable number.

133121323113001 is a deficient number, since it is larger than the sum of its proper divisors (25833756971).

133121323113001 is an equidigital number, since it uses as much as digits as its factorization.

133121323113001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25833756970.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 133121323113001 its reverse (100311323121331), we get a palindrome (233432646234332).

The spelling of 133121323113001 in words is "one hundred thirty-three trillion, one hundred twenty-one billion, three hundred twenty-three million, one hundred thirteen thousand, one".