31003220131301 has 24 divisors (see below), whose sum is σ = 35936375571264. Its totient is φ = 26520809863680.

The previous prime is 31003220131229. The next prime is 31003220131309. The reversal of 31003220131301 is 10313102230013.

It is not a de Polignac number, because 31003220131301 - 2²² = 31003215936997 is a prime.

It is a super-2 number, since 2×31003220131301² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31003220131309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12958241 + ... + 15163193.

It is an arithmetic number, because the mean of its divisors is an integer number (1497348982136).

Almost surely, 2^{31003220131301} is an apocalyptic number.

It is an amenable number.

31003220131301 is a deficient number, since it is larger than the sum of its proper divisors (4933155439963).

31003220131301 is a wasteful number, since it uses less digits than its factorization.

31003220131301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209421 (or 2209404 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31003220131301 its reverse (10313102230013), we get a palindrome (41316322361314).

The spelling of 31003220131301 in words is "thirty-one trillion, three billion, two hundred twenty million, one hundred thirty-one thousand, three hundred one".