13122420031 has 8 divisors (see below), whose sum is σ = 15006561920. Its totient is φ = 11240655768.

The previous prime is 13122420029. The next prime is 13122420049. The reversal of 13122420031 is 13002422131.

It is a happy number.

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 13122420031 - 2¹ = 13122420029 is a prime.

It is a super-2 number, since 2×13122420031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13122419990 and 13122420008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122420061) 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, 582561 + ... + 604666.

It is an arithmetic number, because the mean of its divisors is an integer number (1875820240).

Almost surely, 2^13122420031 is an apocalyptic number.

13122420031 is a deficient number, since it is larger than the sum of its proper divisors (1884141889).

13122420031 is a wasteful number, since it uses less digits than its factorization.

13122420031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188813.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13122420031 its reverse (13002422131), we get a palindrome (26124842162).

The spelling of 13122420031 in words is "thirteen billion, one hundred twenty-two million, four hundred twenty thousand, thirty-one".