31301243030 has 64 divisors (see below), whose sum is σ = 63000903168. Its totient is φ = 11135731200.

The previous prime is 31301243011. The next prime is 31301243101. The reversal of 31301243030 is 3034210313.

It is a junction number, because it is equal to n+sod(n) for n = 31301242993 and 31301243011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276305 + ... + 372755.

It is an arithmetic number, because the mean of its divisors is an integer number (984389112).

Almost surely, 2^31301243030 is an apocalyptic number.

31301243030 is an abundant number, since it is smaller than the sum of its proper divisors (31699660138).

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

31301243030 is a wasteful number, since it uses less digits than its factorization.

31301243030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96581.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31301243030 its reverse (3034210313), we get a palindrome (34335453343).

The spelling of 31301243030 in words is "thirty-one billion, three hundred one million, two hundred forty-three thousand, thirty".