1011012403158 has 24 divisors (see below), whose sum is σ = 2205228402000. Its totient is φ = 334742360784.

The previous prime is 1011012403157. The next prime is 1011012403201. The reversal of 1011012403158 is 8513042101101.

1011012403158 is a `hidden beast` number, since 1 + 0 + 1 + 101 + 2 + 403 + 158 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011012403153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188478378 + ... + 188483741.

It is an arithmetic number, because the mean of its divisors is an integer number (91884516750).

Almost surely, 2^{1011012403158} is an apocalyptic number.

1011012403158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1011012403158 is an abundant number, since it is smaller than the sum of its proper divisors (1194215998842).

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

1011012403158 is a wasteful number, since it uses less digits than its factorization.

1011012403158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376962276 (or 376962273 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

Adding to 1011012403158 its reverse (8513042101101), we get a palindrome (9524054504259).

The spelling of 1011012403158 in words is "one trillion, eleven billion, twelve million, four hundred three thousand, one hundred fifty-eight".