31201011200120 has 16 divisors (see below), whose sum is σ = 70202275200360. Its totient is φ = 12480404480032.

The previous prime is 31201011200111. The next prime is 31201011200129. The reversal of 31201011200120 is 2100211010213.

It is an interprime number because it is at equal distance from previous prime (31201011200111) and next prime (31201011200129).

It is a junction number, because it is equal to n+sod(n) for n = 31201011200095 and 31201011200104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201011200129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390012639962 + ... + 390012640041.

Almost surely, 2^{31201011200120} is an apocalyptic number.

It is an amenable number.

31201011200120 is an abundant number, since it is smaller than the sum of its proper divisors (39001264000240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31201011200120 is a wasteful number, since it uses less digits than its factorization.

31201011200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780025280014 (or 780025280010 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 31201011200120 its reverse (2100211010213), we get a palindrome (33301222210333).

The spelling of 31201011200120 in words is "thirty-one trillion, two hundred one billion, eleven million, two hundred thousand, one hundred twenty".