31425320102100 has 144 divisors (see below), whose sum is σ = 101339360740800. Its totient is φ = 7472026552320.

The previous prime is 31425320102069. The next prime is 31425320102129. The reversal of 31425320102100 is 120102352413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162056455 + ... + 162250254.

It is an arithmetic number, because the mean of its divisors is an integer number (703745560700).

Almost surely, 2^{31425320102100} is an apocalyptic number.

31425320102100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31425320102100 is an abundant number, since it is smaller than the sum of its proper divisors (69914040638700).

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

31425320102100 is a wasteful number, since it uses less digits than its factorization.

31425320102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324306762 (or 324306755 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 31425320102100 its reverse (120102352413), we get a palindrome (31545422454513).

The spelling of 31425320102100 in words is "thirty-one trillion, four hundred twenty-five billion, three hundred twenty million, one hundred two thousand, one hundred".