43047492121 has 8 divisors (see below), whose sum is σ = 44229172040. Its totient is φ = 41866771968.

The previous prime is 43047492113. The next prime is 43047492133. The reversal of 43047492121 is 12129474034.

It can be written as a sum of positive squares in 4 ways, for example, as 10472656896 + 32574835225 = 102336^2 + 180485^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43047492121 - 2³ = 43047492113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43047492221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148536 + ... + 328873.

It is an arithmetic number, because the mean of its divisors is an integer number (5528646505).

Almost surely, 2^43047492121 is an apocalyptic number.

It is an amenable number.

43047492121 is a deficient number, since it is larger than the sum of its proper divisors (1181679919).

43047492121 is a wasteful number, since it uses less digits than its factorization.

43047492121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479883.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 43047492121 in words is "forty-three billion, forty-seven million, four hundred ninety-two thousand, one hundred twenty-one".