1020253151445 has 16 divisors (see below), whose sum is σ = 1780805500992. Its totient is φ = 494668194560.

The previous prime is 1020253151441. The next prime is 1020253151447. The reversal of 1020253151445 is 5441513520201.

It is not a de Polignac number, because 1020253151445 - 2² = 1020253151441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020253151441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3091676052 + ... + 3091676381.

It is an arithmetic number, because the mean of its divisors is an integer number (111300343812).

Almost surely, 2^{1020253151445} is an apocalyptic number.

1020253151445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020253151445 is a deficient number, since it is larger than the sum of its proper divisors (760552349547).

1020253151445 is a wasteful number, since it uses less digits than its factorization.

1020253151445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6183352452.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 1020253151445 its reverse (5441513520201), we get a palindrome (6461766671646).

The spelling of 1020253151445 in words is "one trillion, twenty billion, two hundred fifty-three million, one hundred fifty-one thousand, four hundred forty-five".