42131010431025 has 36 divisors (see below), whose sum is σ = 75493337689692. Its totient is φ = 22460338696320.

The previous prime is 42131010430997. The next prime is 42131010431071. The reversal of 42131010431025 is 52013401013124.

42131010431025 is a `hidden beast` number, since 4 + 2 + 1 + 310 + 10 + 4 + 310 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 6710705793009 + 35420304638016 = 2590503^2 + 5951496^2 .

It is not a de Polignac number, because 42131010431025 - 2²¹ = 42131008333873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42131010431025.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 39191554 + ... + 40252203.

It is an arithmetic number, because the mean of its divisors is an integer number (2097037158047).

Almost surely, 2^{42131010431025} is an apocalyptic number.

42131010431025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42131010431025 is a deficient number, since it is larger than the sum of its proper divisors (33362327258667).

42131010431025 is a wasteful number, since it uses less digits than its factorization.

42131010431025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79446130 (or 79446122 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 42131010431025 its reverse (52013401013124), we get a palindrome (94144411444149).

The spelling of 42131010431025 in words is "forty-two trillion, one hundred thirty-one billion, ten million, four hundred thirty-one thousand, twenty-five".