1403113020 has 48 divisors (see below), whose sum is σ = 4159820448. Its totient is φ = 352153600.

The previous prime is 1403112983. The next prime is 1403113027. The reversal of 1403113020 is 203113041.

It is a super-2 number, since 2×1403113020² = 3937452293787040800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403113027) 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, 686781 + ... + 688820.

It is an arithmetic number, because the mean of its divisors is an integer number (86662926).

Almost surely, 2^1403113020 is an apocalyptic number.

1403113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1403113020 is an abundant number, since it is smaller than the sum of its proper divisors (2756707428).

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

1403113020 is a wasteful number, since it uses less digits than its factorization.

1403113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375630 (or 1375628 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1403113020 is about 37458.1502479767. The cubic root of 1403113020 is about 1119.5174951817.

Adding to 1403113020 its reverse (203113041), we get a palindrome (1606226061).

The spelling of 1403113020 in words is "one billion, four hundred three million, one hundred thirteen thousand, twenty".