1245424051020 has 48 divisors (see below), whose sum is σ = 3487235851008. Its totient is φ = 332108460480.

The previous prime is 1245424051013. The next prime is 1245424051061. The reversal of 1245424051020 is 201504245421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8031057 + ... + 8184663.

It is an arithmetic number, because the mean of its divisors is an integer number (72650746896).

Almost surely, 2^{1245424051020} is an apocalyptic number.

1245424051020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245424051020 is an abundant number, since it is smaller than the sum of its proper divisors (2241811799988).

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

1245424051020 is a wasteful number, since it uses less digits than its factorization.

1245424051020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288750 (or 288748 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 1245424051020 its reverse (201504245421), we get a palindrome (1446928296441).

The spelling of 1245424051020 in words is "one trillion, two hundred forty-five billion, four hundred twenty-four million, fifty-one thousand, twenty".