1020253151403 has 12 divisors (see below), whose sum is σ = 1560387172968. Its totient is φ = 640158840000.

The previous prime is 1020253151381. The next prime is 1020253151419. The reversal of 1020253151403 is 3041513520201.

1020253151403 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 253 + 1 + 5 + 1 + 403 = 666.

It is not a de Polignac number, because 1020253151403 - 2¹² = 1020253147307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020253151503) 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, 3334160473 + ... + 3334160778.

It is an arithmetic number, because the mean of its divisors is an integer number (130032264414).

Almost surely, 2^{1020253151403} is an apocalyptic number.

1020253151403 is a deficient number, since it is larger than the sum of its proper divisors (540134021565).

1020253151403 is a wasteful number, since it uses less digits than its factorization.

1020253151403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6668321274 (or 6668321271 counting only the distinct ones).

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

Adding to 1020253151403 its reverse (3041513520201), we get a palindrome (4061766671604).

The spelling of 1020253151403 in words is "one trillion, twenty billion, two hundred fifty-three million, one hundred fifty-one thousand, four hundred three".