31122413430 has 64 divisors (see below), whose sum is σ = 80629032960. Its totient is φ = 7664725376.

The previous prime is 31122413347. The next prime is 31122413449. The reversal of 31122413430 is 3431422113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31122413430.

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, 757662 + ... + 797681.

It is an arithmetic number, because the mean of its divisors is an integer number (1259828640).

Almost surely, 2^31122413430 is an apocalyptic number.

31122413430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31122413430 is an abundant number, since it is smaller than the sum of its proper divisors (49506619530).

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

31122413430 is a wasteful number, since it uses less digits than its factorization.

31122413430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555405.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31122413430 its reverse (3431422113), we get a palindrome (34553835543).

The spelling of 31122413430 in words is "thirty-one billion, one hundred twenty-two million, four hundred thirteen thousand, four hundred thirty".