20120131223301 has 16 divisors (see below), whose sum is σ = 26922482388800. Its totient is φ = 13365603417600.

The previous prime is 20120131223287. The next prime is 20120131223327. The reversal of 20120131223301 is 10332213102102.

It is not a de Polignac number, because 20120131223301 - 2³⁷ = 19982692269829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120131223501) 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, 27916725 + ... + 28628373.

It is an arithmetic number, because the mean of its divisors is an integer number (1682655149300).

Almost surely, 2^{20120131223301} is an apocalyptic number.

It is an amenable number.

20120131223301 is a deficient number, since it is larger than the sum of its proper divisors (6802351165499).

20120131223301 is a wasteful number, since it uses less digits than its factorization.

20120131223301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745236.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20120131223301 its reverse (10332213102102), we get a palindrome (30452344325403).

The spelling of 20120131223301 in words is "twenty trillion, one hundred twenty billion, one hundred thirty-one million, two hundred twenty-three thousand, three hundred one".