2119270731154 has 4 divisors (see below), whose sum is σ = 3178906096734. Its totient is φ = 1059635365576.

The previous prime is 2119270731119. The next prime is 2119270731199. The reversal of 2119270731154 is 4511370729112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2089114672129 + 30156059025 = 1445377^2 + 173655^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2119270731154.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 529817682787 + ... + 529817682790.

Almost surely, 2^{2119270731154} is an apocalyptic number.

2119270731154 is a deficient number, since it is larger than the sum of its proper divisors (1059635365580).

2119270731154 is a wasteful number, since it uses less digits than its factorization.

2119270731154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059635365579.

The product of its (nonzero) digits is 105840, while the sum is 43.

The spelling of 2119270731154 in words is "two trillion, one hundred nineteen billion, two hundred seventy million, seven hundred thirty-one thousand, one hundred fifty-four".