2131453541234 has 4 divisors (see below), whose sum is σ = 3197180311854. Its totient is φ = 1065726770616.

The previous prime is 2131453541233. The next prime is 2131453541281. The reversal of 2131453541234 is 4321453541312.

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., 1082359333225 + 1049094208009 = 1040365^2 + 1024253^2 .

It is not an unprimeable number, because it can be changed into a prime (2131453541233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532863385307 + ... + 532863385310.

Almost surely, 2^{2131453541234} is an apocalyptic number.

2131453541234 is a deficient number, since it is larger than the sum of its proper divisors (1065726770620).

2131453541234 is a wasteful number, since it uses less digits than its factorization.

2131453541234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065726770619.

The product of its digits is 172800, while the sum is 38.

The spelling of 2131453541234 in words is "two trillion, one hundred thirty-one billion, four hundred fifty-three million, five hundred forty-one thousand, two hundred thirty-four".