1231451712707 has 16 divisors (see below), whose sum is σ = 1302365433600. Its totient is φ = 1162495603200.

The previous prime is 1231451712691. The next prime is 1231451712719. The reversal of 1231451712707 is 7072171541321.

It is a cyclic number.

It is not a de Polignac number, because 1231451712707 - 2⁴ = 1231451712691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231451712767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9382169 + ... + 9512517.

It is an arithmetic number, because the mean of its divisors is an integer number (81397839600).

Almost surely, 2^{1231451712707} is an apocalyptic number.

1231451712707 is a deficient number, since it is larger than the sum of its proper divisors (70913720893).

1231451712707 is a wasteful number, since it uses less digits than its factorization.

1231451712707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137854.

The product of its (nonzero) digits is 82320, while the sum is 41.

The spelling of 1231451712707 in words is "one trillion, two hundred thirty-one billion, four hundred fifty-one million, seven hundred twelve thousand, seven hundred seven".