31300143252025 has 6 divisors (see below), whose sum is σ = 38812177632542. Its totient is φ = 25040114601600.

The previous prime is 31300143251953. The next prime is 31300143252107. The reversal of 31300143252025 is 52025234100313.

It can be written as a sum of positive squares in 3 ways, for example, as 295949056144 + 31004194195881 = 544012^2 + 5568141^2 .

It is not a de Polignac number, because 31300143252025 - 2¹³ = 31300143243833 is a prime.

It is a super-2 number, since 2×31300143252025² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 626002865016 + ... + 626002865065.

Almost surely, 2^{31300143252025} is an apocalyptic number.

It is an amenable number.

31300143252025 is a deficient number, since it is larger than the sum of its proper divisors (7512034380517).

31300143252025 is a wasteful number, since it uses less digits than its factorization.

31300143252025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252005730091 (or 1252005730086 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 31300143252025 its reverse (52025234100313), we get a palindrome (83325377352338).

The spelling of 31300143252025 in words is "thirty-one trillion, three hundred billion, one hundred forty-three million, two hundred fifty-two thousand, twenty-five".