126527765123 has 4 divisors (see below), whose sum is σ = 129219845280. Its totient is φ = 123835684968.

The previous prime is 126527765101. The next prime is 126527765137. The reversal of 126527765123 is 321567725621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126527765123 - 2¹² = 126527761027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 2692080109 = 126527765123 / (1 + 2 + 6 + 5 + 2 + 7 + 7 + 6 + 5 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126527765323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1346040008 + ... + 1346040101.

It is an arithmetic number, because the mean of its divisors is an integer number (32304961320).

Almost surely, 2^126527765123 is an apocalyptic number.

126527765123 is a deficient number, since it is larger than the sum of its proper divisors (2692080157).

126527765123 is an equidigital number, since it uses as much as digits as its factorization.

126527765123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692080156.

The product of its digits is 1058400, while the sum is 47.

The spelling of 126527765123 in words is "one hundred twenty-six billion, five hundred twenty-seven million, seven hundred sixty-five thousand, one hundred twenty-three".