1126721320870 has 16 divisors (see below), whose sum is σ = 2028831386688. Its totient is φ = 450525637440.

The previous prime is 1126721320861. The next prime is 1126721320883. The reversal of 1126721320870 is 780231276211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20332311 + ... + 20387650.

It is an arithmetic number, because the mean of its divisors is an integer number (126801961668).

Almost surely, 2^{1126721320870} is an apocalyptic number.

1126721320870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1126721320870 is a deficient number, since it is larger than the sum of its proper divisors (902110065818).

1126721320870 is a wasteful number, since it uses less digits than its factorization.

1126721320870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40722735.

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 1126721320870 in words is "one trillion, one hundred twenty-six billion, seven hundred twenty-one million, three hundred twenty thousand, eight hundred seventy".