15530103412 has 6 divisors (see below), whose sum is σ = 27177680978. Its totient is φ = 7765051704.

The previous prime is 15530103389. The next prime is 15530103437. The reversal of 15530103412 is 21430103551.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13398988516 + 2131114896 = 115754^2 + 46164^2 .

It is a super-2 number, since 2×15530103412² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1941262923 + ... + 1941262930.

Almost surely, 2^15530103412 is an apocalyptic number.

It is an amenable number.

15530103412 is a deficient number, since it is larger than the sum of its proper divisors (11647577566).

15530103412 is a wasteful number, since it uses less digits than its factorization.

15530103412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882525857 (or 3882525855 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 15530103412 its reverse (21430103551), we get a palindrome (36960206963).

The spelling of 15530103412 in words is "fifteen billion, five hundred thirty million, one hundred three thousand, four hundred twelve".