501040151431 has 4 divisors (see below), whose sum is σ = 501042305232. Its totient is φ = 501037997632.

The previous prime is 501040151419. The next prime is 501040151467. The reversal of 501040151431 is 134151040105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134151040105 = 5 ⋅26830208021.

It is a cyclic number.

It is not a de Polignac number, because 501040151431 - 2⁷ = 501040151303 is a prime.

It is a super-2 number, since 2×501040151431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 501040151396 and 501040151405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501040151831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678931 + ... + 1209556.

It is an arithmetic number, because the mean of its divisors is an integer number (125260576308).

Almost surely, 2^501040151431 is an apocalyptic number.

501040151431 is a deficient number, since it is larger than the sum of its proper divisors (2153801).

501040151431 is a wasteful number, since it uses less digits than its factorization.

501040151431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153800.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 501040151431 its reverse (134151040105), we get a palindrome (635191191536).

The spelling of 501040151431 in words is "five hundred one billion, forty million, one hundred fifty-one thousand, four hundred thirty-one".