20121313311032 has 8 divisors (see below), whose sum is σ = 37727462458200. Its totient is φ = 10060656655512.

The previous prime is 20121313311031. The next prime is 20121313311133. The reversal of 20121313311032 is 23011331312102.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20121313310989 and 20121313311007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121313311031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257582081932 + ... + 1257582081947.

It is an arithmetic number, because the mean of its divisors is an integer number (4715932807275).

Almost surely, 2^{20121313311032} is an apocalyptic number.

It is an amenable number.

20121313311032 is a deficient number, since it is larger than the sum of its proper divisors (17606149147168).

20121313311032 is a wasteful number, since it uses less digits than its factorization.

20121313311032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515164163885 (or 2515164163881 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 20121313311032 its reverse (23011331312102), we get a palindrome (43132644623134).

The spelling of 20121313311032 in words is "twenty trillion, one hundred twenty-one billion, three hundred thirteen million, three hundred eleven thousand, thirty-two".