31030200300000 has 576 divisors, whose sum is σ = 117600463588608. Its totient is φ = 7079961600000.

The previous prime is 31030200299993. The next prime is 31030200300007. The reversal of 31030200300000 is 300203013.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31030200299993) and next prime (31030200300007).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31030200300007) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 55823439 + ... + 56376561.

It is an arithmetic number, because the mean of its divisors is an integer number (204167471508).

Almost surely, 2^{31030200300000} is an apocalyptic number.

31030200300000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31030200300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58800231794304).

31030200300000 is an abundant number, since it is smaller than the sum of its proper divisors (86570263288608).

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

31030200300000 is a wasteful number, since it uses less digits than its factorization.

31030200300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553189 (or 553161 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

Adding to 31030200300000 its reverse (300203013), we get a palindrome (31030500503013).

The spelling of 31030200300000 in words is "thirty-one trillion, thirty billion, two hundred million, three hundred thousand".