1234120729971 has 8 divisors (see below), whose sum is σ = 1652873205760. Its totient is φ = 819057703752.

The previous prime is 1234120729967. The next prime is 1234120729973. The reversal of 1234120729971 is 1799270214321.

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

It is not a de Polignac number, because 1234120729971 - 2² = 1234120729967 is a prime.

It is a super-2 number, since 2×1234120729971² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1234120729971.

It is not an unprimeable number, because it can be changed into a prime (1234120729973) 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, 922361611 + ... + 922362948.

It is an arithmetic number, because the mean of its divisors is an integer number (206609150720).

Almost surely, 2^{1234120729971} is an apocalyptic number.

1234120729971 is a deficient number, since it is larger than the sum of its proper divisors (418752475789).

1234120729971 is a wasteful number, since it uses less digits than its factorization.

1234120729971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844724785.

The product of its (nonzero) digits is 381024, while the sum is 48.

The spelling of 1234120729971 in words is "one trillion, two hundred thirty-four billion, one hundred twenty million, seven hundred twenty-nine thousand, nine hundred seventy-one".