47720431105131 has 16 divisors (see below), whose sum is σ = 66691372640256. Its totient is φ = 30293960543616.

The previous prime is 47720431105121. The next prime is 47720431105141. The reversal of 47720431105131 is 13150113402774.

It is an interprime number because it is at equal distance from previous prime (47720431105121) and next prime (47720431105141).

It is not a de Polignac number, because 47720431105131 - 2⁷ = 47720431105003 is a prime.

It is a super-2 number, since 2×47720431105131² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47720431105131.

It is not an unprimeable number, because it can be changed into a prime (47720431105121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1550658270 + ... + 1550689043.

It is an arithmetic number, because the mean of its divisors is an integer number (4168210790016).

Almost surely, 2^{47720431105131} is an apocalyptic number.

47720431105131 is a deficient number, since it is larger than the sum of its proper divisors (18970941535125).

47720431105131 is a wasteful number, since it uses less digits than its factorization.

47720431105131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101347562.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 47720431105131 in words is "forty-seven trillion, seven hundred twenty billion, four hundred thirty-one million, one hundred five thousand, one hundred thirty-one".