10354231781 has 2 divisors, whose sum is σ = 10354231782. Its totient is φ = 10354231780.

The previous prime is 10354231763. The next prime is 10354231883. The reversal of 10354231781 is 18713245301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9522832225 + 831399556 = 97585^2 + 28834^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10354231781 is a prime.

It is a super-3 number, since 3×10354231781³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10354231751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5177115890 + 5177115891.

It is an arithmetic number, because the mean of its divisors is an integer number (5177115891).

Almost surely, 2^10354231781 is an apocalyptic number.

It is an amenable number.

10354231781 is a deficient number, since it is larger than the sum of its proper divisors (1).

10354231781 is an equidigital number, since it uses as much as digits as its factorization.

10354231781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 10354231781 in words is "ten billion, three hundred fifty-four million, two hundred thirty-one thousand, seven hundred eighty-one".