31030220123130 has 32 divisors (see below), whose sum is σ = 74474712969984. Its totient is φ = 8274482624576.

The previous prime is 31030220123129. The next prime is 31030220123167. The reversal of 31030220123130 is 3132102203013.

It is a junction number, because it is equal to n+sod(n) for n = 31030220123097 and 31030220123106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14130477 + ... + 16178096.

It is an arithmetic number, because the mean of its divisors is an integer number (2327334780312).

Almost surely, 2^{31030220123130} is an apocalyptic number.

31030220123130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31030220123130 is an abundant number, since it is smaller than the sum of its proper divisors (43444492846854).

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

31030220123130 is a wasteful number, since it uses less digits than its factorization.

31030220123130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30342710.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31030220123130 its reverse (3132102203013), we get a palindrome (34162322326143).

The spelling of 31030220123130 in words is "thirty-one trillion, thirty billion, two hundred twenty million, one hundred twenty-three thousand, one hundred thirty".