12154031044 has 6 divisors (see below), whose sum is σ = 21269554334. Its totient is φ = 6077015520.

The previous prime is 12154031023. The next prime is 12154031081. The reversal of 12154031044 is 44013045121.

It can be written as a sum of positive squares in only one way, i.e., 11176718400 + 977312644 = 105720^2 + 31262^2 .

It is a super-3 number, since 3×12154031044³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1519253877 + ... + 1519253884.

Almost surely, 2^12154031044 is an apocalyptic number.

It is an amenable number.

12154031044 is a deficient number, since it is larger than the sum of its proper divisors (9115523290).

12154031044 is a wasteful number, since it uses less digits than its factorization.

12154031044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038507765 (or 3038507763 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12154031044 its reverse (44013045121), we get a palindrome (56167076165).

The spelling of 12154031044 in words is "twelve billion, one hundred fifty-four million, thirty-one thousand, forty-four".