10155623121 has 24 divisors (see below), whose sum is σ = 16788557760. Its totient is φ = 5795002656.

The previous prime is 10155623119. The next prime is 10155623131. The reversal of 10155623121 is 12132655101.

10155623121 is a `hidden beast` number, since 1 + 0 + 15 + 5 + 623 + 1 + 21 = 666.

It is not a de Polignac number, because 10155623121 - 2¹ = 10155623119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10155623111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69015 + ... + 158348.

It is an arithmetic number, because the mean of its divisors is an integer number (699523240).

Almost surely, 2^10155623121 is an apocalyptic number.

It is an amenable number.

10155623121 is a deficient number, since it is larger than the sum of its proper divisors (6632934639).

10155623121 is a wasteful number, since it uses less digits than its factorization.

10155623121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228085 (or 228082 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The spelling of 10155623121 in words is "ten billion, one hundred fifty-five million, six hundred twenty-three thousand, one hundred twenty-one".