13012101231 has 16 divisors (see below), whose sum is σ = 17917805568. Its totient is φ = 8390836800.

The previous prime is 13012101229. The next prime is 13012101253. The reversal of 13012101231 is 13210121031.

It is a happy number.

It is not a de Polignac number, because 13012101231 - 2¹ = 13012101229 is a prime.

It is a super-2 number, since 2×13012101231² (a number of 21 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 13012101231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012101211) 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, 165355 + ... + 231011.

It is an arithmetic number, because the mean of its divisors is an integer number (1119862848).

Almost surely, 2^13012101231 is an apocalyptic number.

13012101231 is a deficient number, since it is larger than the sum of its proper divisors (4905704337).

13012101231 is a wasteful number, since it uses less digits than its factorization.

13012101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67822.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13012101231 its reverse (13210121031), we get a palindrome (26222222262).

The spelling of 13012101231 in words is "thirteen billion, twelve million, one hundred one thousand, two hundred thirty-one".