1025420120412 has 24 divisors (see below), whose sum is σ = 2394836042256. Its totient is φ = 341493979008.

The previous prime is 1025420120411. The next prime is 1025420120423. The reversal of 1025420120412 is 2140210245201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025420120411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39077313 + ... + 39103544.

It is an arithmetic number, because the mean of its divisors is an integer number (99784835094).

Almost surely, 2^{1025420120412} is an apocalyptic number.

1025420120412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1025420120412 is an abundant number, since it is smaller than the sum of its proper divisors (1369415921844).

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

1025420120412 is a wasteful number, since it uses less digits than its factorization.

1025420120412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78181957 (or 78181955 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 1025420120412 its reverse (2140210245201), we get a palindrome (3165630365613).

The spelling of 1025420120412 in words is "one trillion, twenty-five billion, four hundred twenty million, one hundred twenty thousand, four hundred twelve".