13121001211123 has 8 divisors (see below), whose sum is σ = 14130351196416. Its totient is φ = 12111657254400.

The previous prime is 13121001211091. The next prime is 13121001211133. The reversal of 13121001211123 is 32111210012131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13121001211123 - 2⁵ = 13121001211091 is a prime.

It is a super-2 number, since 2×13121001211123² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13121001211123.

It is not an unprimeable number, because it can be changed into a prime (13121001211133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3672558 + ... + 6303148.

It is an arithmetic number, because the mean of its divisors is an integer number (1766293899552).

Almost surely, 2^{13121001211123} is an apocalyptic number.

13121001211123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13121001211123 is a deficient number, since it is larger than the sum of its proper divisors (1009349985293).

13121001211123 is a wasteful number, since it uses less digits than its factorization.

13121001211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014285.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 13121001211123 its reverse (32111210012131), we get a palindrome (45232211223254).

The spelling of 13121001211123 in words is "thirteen trillion, one hundred twenty-one billion, one million, two hundred eleven thousand, one hundred twenty-three".