20313121246136 has 32 divisors (see below), whose sum is σ = 38116351828800. Its totient is φ = 10148763770880.

The previous prime is 20313121246129. The next prime is 20313121246147. The reversal of 20313121246136 is 63164212131302.

It is a super-2 number, since 2×20313121246136² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20313121246096 and 20313121246105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54519356 + ... + 54890676.

It is an arithmetic number, because the mean of its divisors is an integer number (1191135994650).

Almost surely, 2^{20313121246136} is an apocalyptic number.

It is an amenable number.

20313121246136 is a deficient number, since it is larger than the sum of its proper divisors (17803230582664).

20313121246136 is a wasteful number, since it uses less digits than its factorization.

20313121246136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376559 (or 376555 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

Adding to 20313121246136 its reverse (63164212131302), we get a palindrome (83477333377438).

The spelling of 20313121246136 in words is "twenty trillion, three hundred thirteen billion, one hundred twenty-one million, two hundred forty-six thousand, one hundred thirty-six".