1031378718117 has 8 divisors (see below), whose sum is σ = 1500187226400. Its totient is φ = 625078010960.

The previous prime is 1031378718053. The next prime is 1031378718121. The reversal of 1031378718117 is 7118178731301.

1031378718117 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1031378718117 - 2⁶ = 1031378718053 is a prime.

It is a super-2 number, since 2×1031378718117² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031378718197) 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, 15626950242 + ... + 15626950307.

It is an arithmetic number, because the mean of its divisors is an integer number (187523403300).

Almost surely, 2^{1031378718117} is an apocalyptic number.

It is an amenable number.

1031378718117 is a deficient number, since it is larger than the sum of its proper divisors (468808508283).

1031378718117 is a wasteful number, since it uses less digits than its factorization.

1031378718117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31253900563.

The product of its (nonzero) digits is 197568, while the sum is 48.

The spelling of 1031378718117 in words is "one trillion, thirty-one billion, three hundred seventy-eight million, seven hundred eighteen thousand, one hundred seventeen".