2153255131042 has 4 divisors (see below), whose sum is σ = 3229882696566. Its totient is φ = 1076627565520.

The previous prime is 2153255131009. The next prime is 2153255131121. The reversal of 2153255131042 is 2401315523512.

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., 1288018438281 + 865236692761 = 1134909^2 + 930181^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2153255130989 and 2153255131007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538313782759 + ... + 538313782762.

Almost surely, 2^{2153255131042} is an apocalyptic number.

2153255131042 is a deficient number, since it is larger than the sum of its proper divisors (1076627565524).

2153255131042 is a wasteful number, since it uses less digits than its factorization.

2153255131042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076627565523.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 2153255131042 in words is "two trillion, one hundred fifty-three billion, two hundred fifty-five million, one hundred thirty-one thousand, forty-two".