1203253400115 has 32 divisors (see below), whose sum is σ = 2303664632640. Its totient is φ = 592370903808.

The previous prime is 1203253400087. The next prime is 1203253400143. The reversal of 1203253400115 is 5110043523021.

1203253400115 is a `hidden beast` number, since 1 + 2 + 0 + 3 + 253 + 400 + 1 + 1 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1203253400087) and next prime (1203253400143).

It is not a de Polignac number, because 1203253400115 - 2¹² = 1203253396019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342805482 + ... + 342808991.

It is an arithmetic number, because the mean of its divisors is an integer number (71989519770).

Almost surely, 2^{1203253400115} is an apocalyptic number.

1203253400115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1203253400115 is a deficient number, since it is larger than the sum of its proper divisors (1100411232525).

1203253400115 is a wasteful number, since it uses less digits than its factorization.

1203253400115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685614500 (or 685614494 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 1203253400115 its reverse (5110043523021), we get a palindrome (6313296923136).

The spelling of 1203253400115 in words is "one trillion, two hundred three billion, two hundred fifty-three million, four hundred thousand, one hundred fifteen".