10031121305 has 16 divisors (see below), whose sum is σ = 12151779840. Its totient is φ = 7948700928.

The previous prime is 10031121277. The next prime is 10031121323. The reversal of 10031121305 is 50312113001.

It is a cyclic number.

It is not a de Polignac number, because 10031121305 - 2¹⁴ = 10031104921 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1025126 + ... + 1034864.

It is an arithmetic number, because the mean of its divisors is an integer number (759486240).

Almost surely, 2^10031121305 is an apocalyptic number.

It is an amenable number.

10031121305 is a deficient number, since it is larger than the sum of its proper divisors (2120658535).

10031121305 is a wasteful number, since it uses less digits than its factorization.

10031121305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11680.

The product of its (nonzero) digits is 90, while the sum is 17.

Adding to 10031121305 its reverse (50312113001), we get a palindrome (60343234306).

The spelling of 10031121305 in words is "ten billion, thirty-one million, one hundred twenty-one thousand, three hundred five".