31200135552430 has 32 divisors (see below), whose sum is σ = 60481252036800. Its totient is φ = 11519861617152.

The previous prime is 31200135552403. The next prime is 31200135552479. The reversal of 31200135552430 is 3425553100213.

It is a super-2 number, since 2×31200135552430² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 6143686 + ... + 10007254.

It is an arithmetic number, because the mean of its divisors is an integer number (1890039126150).

Almost surely, 2^{31200135552430} is an apocalyptic number.

31200135552430 is a deficient number, since it is larger than the sum of its proper divisors (29281116484370).

31200135552430 is a wasteful number, since it uses less digits than its factorization.

31200135552430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925708.

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 31200135552430 its reverse (3425553100213), we get a palindrome (34625688652643).

The spelling of 31200135552430 in words is "thirty-one trillion, two hundred billion, one hundred thirty-five million, five hundred fifty-two thousand, four hundred thirty".