1031212105425 has 72 divisors (see below), whose sum is σ = 1873775904000. Its totient is φ = 542023176960.

The previous prime is 1031212105411. The next prime is 1031212105493. The reversal of 1031212105425 is 5245012121301.

It is a happy number.

1031212105425 is a `hidden beast` number, since 1 + 0 + 3 + 1 + 21 + 210 + 5 + 425 = 666.

It is not a de Polignac number, because 1031212105425 - 2⁹ = 1031212104913 is a prime.

It is a super-2 number, since 2×1031212105425² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21640776 + ... + 21688374.

Almost surely, 2^{1031212105425} is an apocalyptic number.

1031212105425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1031212105425 is a deficient number, since it is larger than the sum of its proper divisors (842563798575).

1031212105425 is a wasteful number, since it uses less digits than its factorization.

1031212105425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49007 (or 48999 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 1031212105425 its reverse (5245012121301), we get a palindrome (6276224226726).

The spelling of 1031212105425 in words is "one trillion, thirty-one billion, two hundred twelve million, one hundred five thousand, four hundred twenty-five".