13012002121111 has 64 divisors (see below), whose sum is σ = 16158492057600. Its totient is φ = 10235834459136.

The previous prime is 13012002121067. The next prime is 13012002121133. The reversal of 13012002121111 is 11112120021031.

It is a happy number.

It is not a de Polignac number, because 13012002121111 - 2¹³ = 13012002112919 is a prime.

It is a super-2 number, since 2×13012002121111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012002121511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 390113211 + ... + 390146563.

It is an arithmetic number, because the mean of its divisors is an integer number (252476438400).

Almost surely, 2^{13012002121111} is an apocalyptic number.

13012002121111 is a deficient number, since it is larger than the sum of its proper divisors (3146489936489).

13012002121111 is a wasteful number, since it uses less digits than its factorization.

13012002121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34328.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 13012002121111 its reverse (11112120021031), we get a palindrome (24124122142142).

The spelling of 13012002121111 in words is "thirteen trillion, twelve billion, two million, one hundred twenty-one thousand, one hundred eleven".