31200102142005 has 16 divisors (see below), whose sum is σ = 49949580181824. Its totient is φ = 16630248890880.

The previous prime is 31200102141829. The next prime is 31200102142063. The reversal of 31200102142005 is 50024120100213.

It is not a de Polignac number, because 31200102142005 - 2¹² = 31200102137909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612822751 + ... + 612873660.

It is an arithmetic number, because the mean of its divisors is an integer number (3121848761364).

Almost surely, 2^{31200102142005} is an apocalyptic number.

It is an amenable number.

31200102142005 is a deficient number, since it is larger than the sum of its proper divisors (18749478039819).

31200102142005 is a wasteful number, since it uses less digits than its factorization.

31200102142005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225698116.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 31200102142005 its reverse (50024120100213), we get a palindrome (81224222242218).

The spelling of 31200102142005 in words is "thirty-one trillion, two hundred billion, one hundred two million, one hundred forty-two thousand, five".