47251021123 has 2 divisors, whose sum is σ = 47251021124. Its totient is φ = 47251021122.

The previous prime is 47251021117. The next prime is 47251021183. The reversal of 47251021123 is 32112015274.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47251021123 is a prime.

It is a super-2 number, since 2×47251021123² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47251021091 and 47251021100.

It is not a weakly prime, because it can be changed into another prime (47251021183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23625510561 + 23625510562.

It is an arithmetic number, because the mean of its divisors is an integer number (23625510562).

Almost surely, 2^47251021123 is an apocalyptic number.

47251021123 is a deficient number, since it is larger than the sum of its proper divisors (1).

47251021123 is an equidigital number, since it uses as much as digits as its factorization.

47251021123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 47251021123 its reverse (32112015274), we get a palindrome (79363036397).

The spelling of 47251021123 in words is "forty-seven billion, two hundred fifty-one million, twenty-one thousand, one hundred twenty-three".