43071071631025 has 12 divisors (see below), whose sum is σ = 53600937960412. Its totient is φ = 34332464312640.

The previous prime is 43071071631019. The next prime is 43071071631031. The reversal of 43071071631025 is 52013617017034.

It is an interprime number because it is at equal distance from previous prime (43071071631019) and next prime (43071071631031).

It can be written as a sum of positive squares in 6 ways, for example, as 6187867569 + 43064883763456 = 78663^2 + 6562384^2 .

It is not a de Polignac number, because 43071071631025 - 2³ = 43071071631017 is a prime.

It is a super-2 number, since 2×43071071631025² (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 11 ways as a sum of consecutive naturals, for example, 3109817742 + ... + 3109831591.

Almost surely, 2^{43071071631025} is an apocalyptic number.

It is an amenable number.

43071071631025 is a deficient number, since it is larger than the sum of its proper divisors (10529866329387).

43071071631025 is a wasteful number, since it uses less digits than its factorization.

43071071631025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6219649620 (or 6219649615 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

Adding to 43071071631025 its reverse (52013617017034), we get a palindrome (95084688648059).

The spelling of 43071071631025 in words is "forty-three trillion, seventy-one billion, seventy-one million, six hundred thirty-one thousand, twenty-five".