10123457691 has 8 divisors (see below), whose sum is σ = 13628992000. Its totient is φ = 6683447592.

The previous prime is 10123457689. The next prime is 10123457737. The reversal of 10123457691 is 19675432101.

10123457691 is digitally balanced in base 3, because in such base 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 not a de Polignac number, because 10123457691 - 2¹ = 10123457689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10123457611) 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, 16380691 + ... + 16381308.

It is an arithmetic number, because the mean of its divisors is an integer number (1703624000).

Almost surely, 2^10123457691 is an apocalyptic number.

10123457691 is a deficient number, since it is larger than the sum of its proper divisors (3505534309).

10123457691 is a wasteful number, since it uses less digits than its factorization.

10123457691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32762105.

The product of its (nonzero) digits is 45360, while the sum is 39.

Adding to 10123457691 its reverse (19675432101), we get a palindrome (29798889792).

The spelling of 10123457691 in words is "ten billion, one hundred twenty-three million, four hundred fifty-seven thousand, six hundred ninety-one".