31021201002 has 48 divisors (see below), whose sum is σ = 68371299360. Its totient is φ = 9376113120.

The previous prime is 31021200983. The next prime is 31021201009. The reversal of 31021201002 is 20010212013.

It is not an unprimeable number, because it can be changed into a prime (31021201009) 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, 227493 + ... + 337335.

It is an arithmetic number, because the mean of its divisors is an integer number (1424402070).

Almost surely, 2^31021201002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31021201002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34185649680).

31021201002 is an abundant number, since it is smaller than the sum of its proper divisors (37350098358).

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

31021201002 is a wasteful number, since it uses less digits than its factorization.

31021201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110259 (or 110248 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 31021201002 its reverse (20010212013), we get a palindrome (51031413015).

The spelling of 31021201002 in words is "thirty-one billion, twenty-one million, two hundred one thousand, two".