13121210223111 has 16 divisors (see below), whose sum is σ = 17667037066464. Its totient is φ = 8661750096384.

The previous prime is 13121210223101. The next prime is 13121210223139. The reversal of 13121210223111 is 11132201212131.

It is not a de Polignac number, because 13121210223111 - 2¹³ = 13121210214919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121210223101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40044750 + ... + 40371083.

It is an arithmetic number, because the mean of its divisors is an integer number (1104189816654).

Almost surely, 2^{13121210223111} is an apocalyptic number.

13121210223111 is a deficient number, since it is larger than the sum of its proper divisors (4545826843353).

13121210223111 is a wasteful number, since it uses less digits than its factorization.

13121210223111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80416370.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 13121210223111 its reverse (11132201212131), we get a palindrome (24253411435242).

The spelling of 13121210223111 in words is "thirteen trillion, one hundred twenty-one billion, two hundred ten million, two hundred twenty-three thousand, one hundred eleven".