1002153531042 has 32 divisors (see below), whose sum is σ = 2323834277760. Its totient is φ = 319527212400.

The previous prime is 1002153531037. The next prime is 1002153531101. The reversal of 1002153531042 is 2401353512001.

1002153531042 is a `hidden beast` number, since 1 + 0 + 0 + 21 + 535 + 3 + 104 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1002153530997 and 1002153531015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403442209 + ... + 403444692.

It is an arithmetic number, because the mean of its divisors is an integer number (72619821180).

Almost surely, 2^{1002153531042} is an apocalyptic number.

1002153531042 is an abundant number, since it is smaller than the sum of its proper divisors (1321680746718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1002153531042 is a wasteful number, since it uses less digits than its factorization.

1002153531042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806886935 (or 806886929 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 1002153531042 in words is "one trillion, two billion, one hundred fifty-three million, five hundred thirty-one thousand, forty-two".