1311402030 has 32 divisors (see below), whose sum is σ = 3148343424. Its totient is φ = 349598496.

The previous prime is 1311402019. The next prime is 1311402031. The reversal of 1311402030 is 302041131.

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 (1311402031) 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, 152629 + ... + 160991.

It is an arithmetic number, because the mean of its divisors is an integer number (98385732).

Almost surely, 2^1311402030 is an apocalyptic number.

1311402030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311402030 is an abundant number, since it is smaller than the sum of its proper divisors (1836941394).

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

1311402030 is a wasteful number, since it uses less digits than its factorization.

1311402030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13600.

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

The square root of 1311402030 is about 36213.2852693594. The cubic root of 1311402030 is about 1094.5743930911.

Adding to 1311402030 its reverse (302041131), we get a palindrome (1613443161).

The spelling of 1311402030 in words is "one billion, three hundred eleven million, four hundred two thousand, thirty".