126012201723 has 12 divisors (see below), whose sum is σ = 187889161408. Its totient is φ = 81298194480.

The previous prime is 126012201709. The next prime is 126012201727. The reversal of 126012201723 is 327102210621.

126012201723 is a `hidden beast` number, since 1 + 2 + 601 + 2 + 20 + 17 + 23 = 666.

It is not a de Polignac number, because 126012201723 - 2¹⁸ = 126011939579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126012201727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225828040 + ... + 225828597.

Almost surely, 2^126012201723 is an apocalyptic number.

126012201723 is a deficient number, since it is larger than the sum of its proper divisors (61876959685).

126012201723 is a wasteful number, since it uses less digits than its factorization.

126012201723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451656674 (or 451656671 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The spelling of 126012201723 in words is "one hundred twenty-six billion, twelve million, two hundred one thousand, seven hundred twenty-three".