3112123402 has 4 divisors (see below), whose sum is σ = 4668185106. Its totient is φ = 1556061700.

The previous prime is 3112123381. The next prime is 3112123423. The reversal of 3112123402 is 2043212113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2043212113 = 37 ⋅55221949.

It is an interprime number because it is at equal distance from previous prime (3112123381) and next prime (3112123423).

It can be written as a sum of positive squares in only one way, i.e., 2827155241 + 284968161 = 53171^2 + 16881^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3112123402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 778030849 + ... + 778030852.

Almost surely, 2^3112123402 is an apocalyptic number.

3112123402 is a deficient number, since it is larger than the sum of its proper divisors (1556061704).

3112123402 is a wasteful number, since it uses less digits than its factorization.

3112123402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556061703.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3112123402 is about 55786.4087569723. The cubic root of 3112123402 is about 1459.9980299592.

Adding to 3112123402 its reverse (2043212113), we get a palindrome (5155335515).

The spelling of 3112123402 in words is "three billion, one hundred twelve million, one hundred twenty-three thousand, four hundred two".