31300402430020 has 48 divisors (see below), whose sum is σ = 69195432902400. Its totient is φ = 11860336051200.

The previous prime is 31300402429883. The next prime is 31300402430023. The reversal of 31300402430020 is 2003420400313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31300402429973 and 31300402430000.

It is not an unprimeable number, because it can be changed into a prime (31300402430023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2187220 + ... + 8208820.

It is an arithmetic number, because the mean of its divisors is an integer number (1441571518800).

Almost surely, 2^{31300402430020} is an apocalyptic number.

It is an amenable number.

31300402430020 is an abundant number, since it is smaller than the sum of its proper divisors (37895030472380).

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

31300402430020 is a wasteful number, since it uses less digits than its factorization.

31300402430020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6035308 (or 6035306 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 31300402430020 its reverse (2003420400313), we get a palindrome (33303822830333).

The spelling of 31300402430020 in words is "thirty-one trillion, three hundred billion, four hundred two million, four hundred thirty thousand, twenty".