1020125315443 has 4 divisors (see below), whose sum is σ = 1098596493568. Its totient is φ = 941654137320.

The previous prime is 1020125315437. The next prime is 1020125315477. The reversal of 1020125315443 is 3445135210201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1020125315443 - 2¹³ = 1020125307251 is a prime.

It is a super-3 number, since 3×1020125315443³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020125310443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39235589043 + ... + 39235589068.

It is an arithmetic number, because the mean of its divisors is an integer number (274649123392).

Almost surely, 2^{1020125315443} is an apocalyptic number.

1020125315443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1020125315443 is a deficient number, since it is larger than the sum of its proper divisors (78471178125).

1020125315443 is an equidigital number, since it uses as much as digits as its factorization.

1020125315443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78471178124.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 1020125315443 in words is "one trillion, twenty billion, one hundred twenty-five million, three hundred fifteen thousand, four hundred forty-three".